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Best way to populate the <SELECT> field with time zones

I need to display the time zone selector as a user control, which always seems easier than it really is. Inside, I store everything with the DateTimeZone identifier, as this is probably the smartest way to get the level of accuracy you need, as this project builds bridges in real time, as it is tied to terrestrial environments.

What I don't want to do is a selection box with more than 300 time zones, and I don't want to create fake time zone offsets with something like UTC-8 (which loses not only DST information, but also the actual date, on which falls DST).

In the end, I will need a choice with parameters containing the correct TZD identifiers, something like this (enclosed in square brackets #s are not needed, just to illustrate the end user):

<select> <option value="America/Los_Angeles">Los Angeles [UTC-7 | DST]</option> ... </select>

Does anyone have pointers to create this list? All the solutions I was looking for were somehow problematic.



I added generosity in case someone might tempt someone to share a more pleasant answer with us. :)

+43
php
Aug 03 2018-11-11T00:
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12 answers
 function formatOffset($offset) { $hours = $offset / 3600; $remainder = $offset % 3600; $sign = $hours > 0 ? '+' : '-'; $hour = (int) abs($hours); $minutes = (int) abs($remainder / 60); if ($hour == 0 AND $minutes == 0) { $sign = ' '; } return $sign . str_pad($hour, 2, '0', STR_PAD_LEFT) .':'. str_pad($minutes,2, '0'); } $utc = new DateTimeZone('UTC'); $dt = new DateTime('now', $utc); echo '<select name="userTimeZone">'; foreach(DateTimeZone::listIdentifiers() as $tz) { $current_tz = new DateTimeZone($tz); $offset = $current_tz->getOffset($dt); $transition = $current_tz->getTransitions($dt->getTimestamp(), $dt->getTimestamp()); $abbr = $transition[0]['abbr']; echo '<option value="' .$tz. '">' .$tz. ' [' .$abbr. ' '. formatOffset($offset). ']</option>'; } echo '</select>';

The above will display all time zones in the selection menu with the following format:

 <select name="userTimeZone"> <option value="America/Los_Angeles">America/Los_Angeles [PDT -7]</option> </select>
+65
Aug 11 2018-11-11T00:
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My decision:

To avoid a huge list of time zones, first select a country and then use this information to populate the list of time zones.

File populate.php

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <title>Select test</title> <script type="text/javascript" src="http://code.jquery.com/jquery-1.6.2.min.js"></script> <script type="text/javascript" charset="utf-8"> $(function(){ $("select#country").change(function(){ $.getJSON("json.php",{country: $(this).val()}, function(j){ var options = ''; for (var i = 0; i < j.length; i++) { options += '<option value="' + j[i].optionValue + '">' + j[i].optionDisplay + '</option>'; } $("#city").html(options); $('#city option:first').attr('selected', 'selected'); }) }) }) </script> </head> <body> <form action="#"> <label for="country">Country:</label> <select name="country" id="country"> <option value="Portugal">Portugal</option> <option value="United States">United States</option> <option value="Japan">Japan</option> </select> <label for="city">Timezone:</label> <select name="city" id="city"> <option value="Atlantic/Azores">Atlantic/Azores</option> <option value="Atlantic/Madeira">Atlantic/Madeira</option> <option value="Europe/Lisbon">Europe/Lisbon</option> </select> <input type="submit" name="action" value="Set TZ" /> </form>

json.php file

 $country = $_GET['country']; $citylist = ""; $country_list = file_get_contents("country_iso.txt"); //grab this file @ http://pastebin.com/e8gxcVHm preg_match_all('/(.*?):'.$country.'/im', $country_list, $country_iso, PREG_PATTERN_ORDER); $country_iso = $country_iso[1][0]; if(isset($country_iso)) { $tz = DateTimeZone::listIdentifiers(DateTimeZone::PER_COUNTRY, $country_iso); //php 5.3 needed to use DateTimeZone::PER_COUNTRY ! foreach($tz as $city) $citylist .= "{\"optionValue\": \"$city\", \"optionDisplay\": \"$city\"}, "; } $citylist = preg_replace('/, $/im', '', $citylist); $citylist = "[".$citylist."]"; echo $citylist;

Hope this helps you :)

+9
Aug 16 2018-11-11T00:
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If you want to do something with zoneinfo, you really have no choice but to include hundreds of records, because that’s exactly how zoneinfo works. There is usually at least one entry for each country, and there are about 200 countries (according to Wikipedia ).

What I did earlier is to use timezone_identifiers_list() and filter out any entry that is not in one of the standard areas:

 # Output option list, HTML. $opt = ''; $regions = array('Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific'); $tzs = timezone_identifiers_list(); $optgroup = ''; sort($tzs); foreach ($tzs as $tz) { $z = explode('/', $tz, 2); # timezone_identifiers_list() returns a number of # backwards-compatibility entries. This filters them out of the # list presented to the user. if (count($z) != 2 || !in_array($z[0], $regions)) continue; if ($optgroup != $z[0]) { if ($optgroup !== '') $opt .= '</optgroup>'; $optgroup = $z[0]; $opt .= '<optgroup label="' . htmlentities($z[0]) . '">'; } $opt .= '<option value="' . htmlentities($tz) . '" label="' . htmlentities(str_replace('_', ' ', $z[1])) . '">' . htmlentities(str_replace('_', ' ', $tz)) . '</option>'; } if ($optgroup !== '') $opt .= '</optgroup>';

Creates a list with <optgroup> elements, so the list will be at least logically divided by region.

+8
Aug 10 2018-11-11T00:
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I came up with a dynamic self-updating solution that does not require any lookup tables ( select a demo ):

 function Timezones() { $result = array(); $timezones = array(); // only process geographical timezones foreach (preg_grep('~^(?:A(?:frica|merica|ntarctica|rctic|tlantic|sia|ustralia)|Europe|Indian|Pacific)/~', timezone_identifiers_list()) as $timezone) { if (is_object($timezone = new DateTimeZone($timezone)) === true) { $id = array(); // get only the two most distant transitions foreach (array_slice($timezone->getTransitions($_SERVER['REQUEST_TIME']), -2) as $transition) { // dark magic $id[] = sprintf('%b|%+d|%u', $transition['isdst'], $transition['offset'], $transition['ts']); } if (count($id) > 1) { sort($id, SORT_NUMERIC); // sort by %b (isdst = 0) first, so that we always get the raw offset } $timezones[implode('|', $id)][] = $timezone->getName(); } } if ((is_array($timezones) === true) && (count($timezones) > 0)) { uksort($timezones, function($a, $b) // sort offsets by -, 0, + { foreach (array('a', 'b') as $key) { $$key = explode('|', $$key); } return intval($a[1]) - intval($b[1]); }); foreach ($timezones as $key => $value) { $zone = reset($value); // first timezone ID is our internal timezone $result[$zone] = preg_replace(array('~^.*/([^/]+)$~', '~_~'), array('$1', ' '), $value); // "humanize" city names if (array_key_exists(1, $offset = explode('|', $key)) === true) // "humanize" the offset { $offset = str_replace(' +00:00', '', sprintf('(UTC %+03d:%02u)', $offset[1] / 3600, abs($offset[1]) % 3600 / 60)); } if (asort($result[$zone]) === true) // sort city names { $result[$zone] = trim(sprintf('%s %s', $offset, implode(', ', $result[$zone]))); } } } return $result; }

There are many time zones with the same DST offsets and times (for example, Europe/Dublin , Europe/Lisbon and Europe/London ), my algorithm groups these zones (using a special entry in the dst?|offset|timestamp array keys) in the first time zone identifier this group and combines the humanized transformations of the last (usually city level) segment of the time zone identifier:

 Array ( [Pacific/Midway] => (UTC -11:00) Midway, Niue, Pago Pago [America/Adak] => (UTC -10:00) Adak [Pacific/Fakaofo] => (UTC -10:00) Fakaofo, Honolulu, Johnston, Rarotonga, Tahiti [Pacific/Marquesas] => (UTC -10:30) Marquesas [America/Anchorage] => (UTC -09:00) Anchorage, Juneau, Nome, Sitka, Yakutat [Pacific/Gambier] => (UTC -09:00) Gambier [America/Dawson] => (UTC -08:00) Dawson, Los Angeles, Tijuana, Vancouver, Whitehorse [America/Santa_Isabel] => (UTC -08:00) Santa Isabel [America/Metlakatla] => (UTC -08:00) Metlakatla, Pitcairn [America/Dawson_Creek] => (UTC -07:00) Dawson Creek, Hermosillo, Phoenix [America/Chihuahua] => (UTC -07:00) Chihuahua, Mazatlan [America/Boise] => (UTC -07:00) Boise, Cambridge Bay, Denver, Edmonton, Inuvik, Ojinaga, Shiprock, Yellowknife [America/Chicago] => (UTC -06:00) Beulah, Center, Chicago, Knox, Matamoros, Menominee, New Salem, Rainy River, Rankin Inlet, Resolute, Tell City, Winnipeg [America/Belize] => (UTC -06:00) Belize, Costa Rica, El Salvador, Galapagos, Guatemala, Managua, Regina, Swift Current, Tegucigalpa [Pacific/Easter] => (UTC -06:00) Easter [America/Bahia_Banderas] => (UTC -06:00) Bahia Banderas, Cancun, Merida, Mexico City, Monterrey [America/Detroit] => (UTC -05:00) Detroit, Grand Turk, Indianapolis, Iqaluit, Louisville, Marengo, Monticello, Montreal, Nassau, New York, Nipigon, Pangnirtung, Petersburg, Thunder Bay, Toronto, Vevay, Vincennes, Winamac [America/Atikokan] => (UTC -05:00) Atikokan, Bogota, Cayman, Guayaquil, Jamaica, Lima, Panama, Port-au-Prince [America/Havana] => (UTC -05:00) Havana [America/Caracas] => (UTC -05:30) Caracas [America/Glace_Bay] => (UTC -04:00) Bermuda, Glace Bay, Goose Bay, Halifax, Moncton, Thule [Atlantic/Stanley] => (UTC -04:00) Stanley [America/Santiago] => (UTC -04:00) Palmer, Santiago [America/Anguilla] => (UTC -04:00) Anguilla, Antigua, Aruba, Barbados, Blanc-Sablon, Boa Vista, Curacao, Dominica, Eirunepe, Grenada, Guadeloupe, Guyana, Kralendijk, La Paz, Lower Princes, Manaus, Marigot, Martinique, Montserrat, Port of Spain, Porto Velho, Puerto Rico, Rio Branco, Santo Domingo, St Barthelemy, St Kitts, St Lucia, St Thomas, St Vincent, Tortola [America/Campo_Grande] => (UTC -04:00) Campo Grande, Cuiaba [America/Asuncion] => (UTC -04:00) Asuncion [America/St_Johns] => (UTC -04:30) St Johns [America/Sao_Paulo] => (UTC -03:00) Sao Paulo [America/Araguaina] => (UTC -03:00) Araguaina, Bahia, Belem, Buenos Aires, Catamarca, Cayenne, Cordoba, Fortaleza, Jujuy, La Rioja, Maceio, Mendoza, Paramaribo, Recife, Rio Gallegos, Rothera, Salta, San Juan, Santarem, Tucuman, Ushuaia [America/Montevideo] => (UTC -03:00) Montevideo [America/Godthab] => (UTC -03:00) Godthab [America/Argentina/San_Luis] => (UTC -03:00) San Luis [America/Miquelon] => (UTC -03:00) Miquelon [America/Noronha] => (UTC -02:00) Noronha, South Georgia [Atlantic/Cape_Verde] => (UTC -01:00) Cape Verde [America/Scoresbysund] => (UTC -01:00) Azores, Scoresbysund [Atlantic/Canary] => (UTC) Canary, Dublin, Faroe, Guernsey, Isle of Man, Jersey, Lisbon, London, Madeira [Africa/Abidjan] => (UTC) Abidjan, Accra, Bamako, Banjul, Bissau, Casablanca, Conakry, Dakar, Danmarkshavn, El Aaiun, Freetown, Lome, Monrovia, Nouakchott, Ouagadougou, Reykjavik, Sao Tome, St Helena [Africa/Algiers] => (UTC +01:00) Algiers, Bangui, Brazzaville, Douala, Kinshasa, Lagos, Libreville, Luanda, Malabo, Ndjamena, Niamey, Porto-Novo, Tunis [Africa/Ceuta] => (UTC +01:00) Amsterdam, Andorra, Belgrade, Berlin, Bratislava, Brussels, Budapest, Ceuta, Copenhagen, Gibraltar, Ljubljana, Longyearbyen, Luxembourg, Madrid, Malta, Monaco, Oslo, Paris, Podgorica, Prague, Rome, San Marino, Sarajevo, Skopje, Stockholm, Tirane, Vaduz, Vatican, Vienna, Warsaw, Zagreb, Zurich [Africa/Windhoek] => (UTC +01:00) Windhoek [Asia/Damascus] => (UTC +02:00) Damascus [Asia/Beirut] => (UTC +02:00) Beirut [Asia/Jerusalem] => (UTC +02:00) Jerusalem [Asia/Nicosia] => (UTC +02:00) Athens, Bucharest, Chisinau, Helsinki, Istanbul, Mariehamn, Nicosia, Riga, Sofia, Tallinn, Vilnius [Africa/Blantyre] => (UTC +02:00) Blantyre, Bujumbura, Cairo, Gaborone, Gaza, Harare, Hebron, Johannesburg, Kigali, Lubumbashi, Lusaka, Maputo, Maseru, Mbabane, Tripoli [Asia/Amman] => (UTC +02:00) Amman [Africa/Addis_Ababa] => (UTC +03:00) Addis Ababa, Aden, Antananarivo, Asmara, Baghdad, Bahrain, Comoro, Dar es Salaam, Djibouti, Juba, Kaliningrad, Kampala, Khartoum, Kiev, Kuwait, Mayotte, Minsk, Mogadishu, Nairobi, Qatar, Riyadh, Simferopol, Syowa, Uzhgorod, Zaporozhye [Asia/Tehran] => (UTC +03:30) Tehran [Asia/Yerevan] => (UTC +04:00) Yerevan [Asia/Dubai] => (UTC +04:00) Dubai, Mahe, Mauritius, Moscow, Muscat, Reunion, Samara, Tbilisi, Volgograd [Asia/Baku] => (UTC +04:00) Baku [Asia/Kabul] => (UTC +04:30) Kabul [Antarctica/Mawson] => (UTC +05:00) Aqtau, Aqtobe, Ashgabat, Dushanbe, Karachi, Kerguelen, Maldives, Mawson, Oral, Samarkand, Tashkent [Asia/Colombo] => (UTC +05:30) Colombo, Kolkata [Asia/Kathmandu] => (UTC +05:45) Kathmandu [Antarctica/Vostok] => (UTC +06:00) Almaty, Bishkek, Chagos, Dhaka, Qyzylorda, Thimphu, Vostok, Yekaterinburg [Asia/Rangoon] => (UTC +06:30) Cocos, Rangoon [Antarctica/Davis] => (UTC +07:00) Bangkok, Christmas, Davis, Ho Chi Minh, Hovd, Jakarta, Novokuznetsk, Novosibirsk, Omsk, Phnom Penh, Pontianak, Vientiane [Antarctica/Casey] => (UTC +08:00) Brunei, Casey, Choibalsan, Chongqing, Harbin, Hong Kong, Kashgar, Krasnoyarsk, Kuala Lumpur, Kuching, Macau, Makassar, Manila, Perth, Shanghai, Singapore, Taipei, Ulaanbaatar, Urumqi [Australia/Eucla] => (UTC +08:45) Eucla [Asia/Dili] => (UTC +09:00) Dili, Irkutsk, Jayapura, Palau, Pyongyang, Seoul, Tokyo [Australia/Adelaide] => (UTC +09:30) Adelaide, Broken Hill [Australia/Darwin] => (UTC +09:30) Darwin [Antarctica/DumontDUrville] => (UTC +10:00) Brisbane, Chuuk, DumontDUrville, Guam, Lindeman, Port Moresby, Saipan, Yakutsk [Australia/Currie] => (UTC +10:00) Currie, Hobart, Melbourne, Sydney [Australia/Lord_Howe] => (UTC +10:30) Lord Howe [Antarctica/Macquarie] => (UTC +11:00) Efate, Guadalcanal, Kosrae, Macquarie, Noumea, Pohnpei, Sakhalin, Vladivostok [Pacific/Norfolk] => (UTC +11:30) Norfolk [Antarctica/McMurdo] => (UTC +12:00) Auckland, McMurdo, South Pole [Asia/Anadyr] => (UTC +12:00) Anadyr, Fiji, Funafuti, Kamchatka, Kwajalein, Magadan, Majuro, Nauru, Tarawa, Wake, Wallis [Pacific/Chatham] => (UTC +12:45) Chatham [Pacific/Enderbury] => (UTC +13:00) Enderbury, Tongatapu [Pacific/Apia] => (UTC +13:00) Apia [Pacific/Kiritimati] => (UTC +14:00) Kiritimati )

Of course, the city’s concatenation is still quite long, but the list of unique (actual) time zones has been reduced from 414 (or 415 if we are considering non-geographic UTC) to 75 — which is pretty good for IMO and seems to reflect a list of Windows using “normalized” time zones (also 75).

This automated approach has two big problems:

  1. the selected time zone identifier for a group of cities is the first in alphabetical order, which means that for (UTC) Canary, Dublin, Faroe Islands, Guernsey, Isle of Man, Jersey, Lisbon, London, Madeira the time zone value will be Atlantic/Canary - although in this should not be anything bad, it would be more reasonable to select the time zone identifier associated with the big city (for example, Europe/London )
  2. city ​​unification is by far the biggest problem, there are too many of them - one way to solve this problem would be to use array_slice($cities, 0, $maxCities) before deployment, but this would not lead to measuring the city in and for Canary limit 4 , Dublin, Faroe Islands, Guernsey, Isle of Man, Jersey, Lisbon, London, Madeira will become Canaria, Dublin, Faroe Islands , Guernsey instead of the more logical Windows equivalent Dublin, Edinburgh, Lisbon, London ,

This should not be very useful, but I thought that I would share it - maybe someone else could improve it.

+5
Oct 18 2018-11-18T00:
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I found this to be a great resource: http://randomdrake.com/2008/08/06/time-zone-abbreviation-difficulties-with-php/

+4
Aug 03 '11 at 5:24 a.m.
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In the end, I don’t think that there is a good solution for pre-rejecting too many time zones ... And the problems connected with this made me decide to just start with a decent class. I post it here, as there are people who were interested in it. I hope my solution will help someone else.

What does he do:

  • Allows you to create a list of time zones from the entire list inside PHP

  • Allows you to create a good list of your own pre-baked definitions by calculating current UTC offsets.

  • Allows you to create a list of countries.

  • De-duplicates time slots with the same abbreviation. Please note that I did not do much research to see if there are duplicates in the list that I should not get rid of. This is reasonable enough to know that even if two time zones can report the same abbreviation (for example, MST for Arizona), that it will additionally determine whether the time zone supports DST at any time of the year.

  • It displays either highly customizable HTML (without going to a template route), or JSON for Ajax or embedded JavaScript.

  • Calculates the current time zone offset for any given time zone. Please note that this is not static ... it will change throughout the year.

  • Provides a large amount of sugar for use in the real world.

What he does not do:

  • Separate countries or continents through OptGroup. Since I'm already doing sorting by UTC offset, it looks like this will create more confusion than it will facilitate.

Things I could add in one day:

  • Create HTML from the template instead of the built-in.

  • Additional selectors, for example, the choice of several countries instead of one.

  • Grouping, but as I mentioned above, I do it.

  • The code is pretty wet. There are some minor coding style inconsistencies.

  • Ability to specify a "preferred" list of friendly names. For example, although Dawson is a viable candidate to be listed as a “city for PDT,” because he is part of the PST core group and oversees summer time ... a city with more than 1000 inhabitants should not be beaten by Los Angeles, San Francisco, Seattle, or Vancouver just because it appears lexically at first.

  • Raw output, so no one is tied to the simple toSelect and toJson methods.

In general, it should fit my needs as it is. It correctly processes all the time zones that I am familiar with, and all the ones that I need for my current project. Unfortunately, my body of knowledge is concentrated mainly around the USA and Western Europe.

It's fine? Probably no. We are happy to hear about any problems / errors / improvements that people with this code may have, as this will most likely end in my permanent library. If someone thinks I'm tall ... let me know about it. This is the whole point of this question was to find the best way to accurately represent the time zone selector, which is actually useful for end users.

TimezoneList.php:

 <?php class TimezoneList { public $timezones = array(); private $_initialized = false; private $_dt_now; private $_utc; function __construct($grouped = false) { $this->_utc = new DateTimeZone('UTC'); $this->_dt_now = new DateTime('now', $this->_utc); } // Public Static Alternate Constructors public static function byCountry($countryKey) { $retVal = new TimezoneList(); $retVal->_setList($countryKey); return $retVal; } public static function fromTimezones(Array $tzArr) { $retVal = new TimezoneList(); foreach ($tzArr as $tzItem) { $retVal->timezones[] = $tzItem; } $retVal->_initialized = true; return $retVal; } public static function fromIdentifierList($timezoneList, $friendlyNames = NULL) { $retVal = new TimezoneList(); if ($friendlyNames) { if (count($timezoneList) != count($friendlyNames)) throw new Exception('Array count mismatch in TimezoneBuilder::fromList'); } // I'd normally use a foreach pattern, but since friendlyNames is optional, this seemed the way to go. for ($ii = 0; $ii < count($timezoneList); $ii++) { $pTimezoneEx = new TimezoneExtended($timezoneList[$ii]); if ($friendlyNames) { $pTimezoneEx->friendlyName = $friendlyNames[$ii]; } $retVal->timezones[] = $pTimezoneEx; } $retVal->_initialized = true; return $retVal; } // Private Statics // Private utility function [ Thanks to Zubair1 ] private static function _formatOffset($offset) { $hours = $offset / 3600; $remainder = $offset % 3600; $sign = $hours > 0 ? '+' : '-'; $hour = (int)abs($hours); $minutes = (int)abs($remainder / 60); $sign = (($hour == 0) && ($minutes == 0)) ? ' ' : $sign; return $sign.str_pad($hour, 2, '0', STR_PAD_LEFT).':'.str_pad($minutes,2, '0'); } // Publics public function getUniqueTimezoneList($countryKey = null) { $this->_initialize(); $outArr = array(); $usedTzs = array(); foreach ($this->timezones as $timezoneEx) { if (!(in_array($timezoneEx->currentKey, $usedTzs))) { $usedTzs[] = $timezoneEx->currentKey; $outArr[] = $timezoneEx; } } usort($outArr,array('self','_orderByOffset')); return self::fromTimezones($outArr); } // In final code, I'll use a PHP include with output buffering as a template. public function toSelect($displayOffset = true, $displayCurrent = true, $selected = array(), Array $options = array()) { $pOpts = array(); $pItems = array(); foreach ($options as $key=>$option) { $pOpts[] = ' '.$key.'="'.$option.'"'; } if (!is_array($selected)) $selected = array($selected); $outVal = '<select'.implode('', $pOpts).'>'."\n"; foreach ($this->timezones as $timezoneEx) { $offset = ''; $selectionAttr = ''; if (in_array($timezoneEx->tzkey, $selected)) { $selectionAttr = ' selected="selected"'; } if ($displayOffset) { $offset = ' ['.$timezoneEx->currentAbbr.' '.self::_formatOffset($timezoneEx->currentOffset); if ($displayCurrent && (!($timezoneEx->observesDst))) $offset .= ' ( Does not observe DST ) '; $offset .= ']'; } $pItems[] = "\t".'<option value="'.$timezoneEx->tzkey.'"'.$selectionAttr.'>'.$timezoneEx->friendlyName.$offset.'</option>'; } $outVal .= implode("\n", $pItems)."\n".'</select>'; return $outVal; } public function toJson() { $outArr = array(); foreach ($this->timezones as $timezoneEx) { $outArr[] = $timezoneEx->toShallowArray(); } return json_encode($outArr); } // Privates private function _initialize() { if ($this->_initialized) return; $this->_setList(); } private function _orderByOffset($a, $b) { if( $a->currentOffset == $b->currentOffset ){ return 0 ; } return ($a->currentOffset < $b->currentOffset) ? -1 : 1; } private function _setList($countryKey = NULL) { $this->timezones = array(); $listType = ($countryKey) ? DateTimeZone::PER_COUNTRY : DateTimeZone::ALL; $tzIds = DateTimeZone::listIdentifiers($listType, $countryKey); foreach ($tzIds as $tzIdentifier) { $this->timezones[] = new TimezoneExtended($tzIdentifier); } $this->_initialized = true; } } class TimezoneExtended { const START_YEAR = 'January 1st'; const MID_YEAR = 'July 1st'; private static $_dt_startYear = NULL; // Static so that we don't have to rebuild it each time we go through. private static $_dt_midYear = NULL; private static $_dtz_utc = NULL; private static $_dt_now = NULL; private $_baseObj; public $tzkey; public $friendlyName; public $currentKey; // Current Key contains the friendly Timezone Key + whether this timezone observes DST. // This is unique across the US & Canada. Unsure if it will be unique across other Timezones. public $currentAbbr; public $currentOffset; public $currentlyDst; public $observesDst = false; // Defaults to off function __construct($tzKey) { if (empty(self::$_dtz_utc)) self::$_dtz_utc = new DateTimeZone('UTC'); if (empty(self::$_dtz_now)) self::$_dt_now = new DateTime('now', self::$_dtz_utc); if (empty(self::$_dt_startYear)) self::$_dt_startYear = new DateTime(self::START_YEAR, self::$_dtz_utc); if (empty(self::$_dt_midYear)) self::$_dt_midYear = new DateTime(self::MID_YEAR, self::$_dtz_utc); $this->tzkey = $tzKey; $this->_baseObj = new DateTimeZone($tzKey); if ($this->_baseObj == NULL) throw new Exception('Invalid Timezone Key'); foreach ($this->_baseObj->getTransitions(self::$_dt_startYear->getTimestamp()) as $transition) { if ($transition['isdst']) $this->observesDst = true; } foreach ($this->_baseObj->getTransitions(self::$_dt_midYear->getTimestamp()) as $transition) { if ($transition['isdst']) $this->observesDst = true; } $this->friendlyName =str_replace('_',' ',array_pop(explode('/',$tzKey))); $pTransition = $this->_baseObj->getTransitions(self::$_dt_now->getTimestamp()); $this->currentAbbr = $pTransition[0]['abbr']; // With a Timestamp, we should only get one transition. $this->currentlyDst = $pTransition[0]['isdst']; $this->currentKey = $this->currentAbbr.'_'.$this->observesDst; $this->currentOffset = $this->_baseObj->getOffset(self::$_dt_now); } public function toShallowArray() { $outArr = array( 'tzkey'=>$this->tzkey, 'friendlyName'=>$this->friendlyName, 'currentOffset'=>$this->currentOffset/3600, 'observesDst'=>$this->observesDst, 'currentlyDst'=>$this->currentlyDst, 'currentAbbr'=>$this->currentAbbr ); return $outArr; } }

Phew Here are some usage examples (timezones.php):

 <?php include_once 'TimezoneList.php'; /* Example 1: Get Select Box by Country Code */ $tzl = TimezoneList::byCountry('US'); $tzl = $tzl->getUniqueTimezoneList(); echo $tzl->toSelect(true,true,'America/Los_Angeles'); echo "\n".'<br />'."\n"; /* Example 2: Get a list by country code, output as JSON for AJAX (or similar uses) */ $_REQUEST['country_code'] = 'US'; // Hack for quick usage. $tzl_ajax = TimezoneList::byCountry($_REQUEST['country_code']); $tzl_ajax = $tzl_ajax->getUniqueTimezoneList(); echo '<script type="text/javascript">'."\n"; echo 'var foo = '.$tzl_ajax->toJson().';'; echo "\n".'</script>'; echo "\n".'<br />'."\n"; /* Example 3: Get Select Box from a list of TZDs + friendly names */ $tzl2 = TimezoneList::fromIdentifierList( array('America/Los_Angeles','America/Boise','America/Phoenix','America/Chicago','America/New_York'), array('Pacific','Mountain','Mountain (Arizona)','Central','Eastern') ); // Example shows setting extra properties on the <SELECT>. echo $tzl2->toSelect(true,false,'America/Los_Angeles', array('style'=>'font-size:15px; border:1px solid #ccc; padding:4px', 'id'=>'timezone_list', 'class'=>'standard-list', 'name'=>'timezone') ); echo "\n".'<br />'."\n"; /* Example 4: Get a raw list of timezones */ $tzl3 = new TimezoneList(true); $tzl3 = $tzl3->getUniqueTimezoneList(); echo $tzl3->toSelect(true,false,'America/Los_Angeles');

And here is the output code from the examples in timezones.php:

 <select> <option value="Pacific/Honolulu">Honolulu [HST -10:00 ( Does not observe DST ) ]</option> <option value="America/Adak">Adak [HADT -09:00]</option> <option value="America/Anchorage">Anchorage [AKDT -08:00]</option> <option value="America/Phoenix">Phoenix [MST -07:00 ( Does not observe DST ) ]</option> <option value="America/Los_Angeles" selected="selected">Los Angeles [PDT -07:00]</option> <option value="America/Boise">Boise [MDT -06:00]</option> <option value="America/Chicago">Chicago [CDT -05:00]</option> <option value="America/Detroit">Detroit [EDT -04:00]</option> </select> <br /> <script type="text/javascript"> var foo = [{"tzkey":"Pacific\/Honolulu","friendlyName":"Honolulu","currentOffset":-10,"observesDst":false,"currentlyDst":false,"currentAbbr":"HST"},{"tzkey":"America\/Adak","friendlyName":"Adak","currentOffset":-9,"observesDst":true,"currentlyDst":true,"currentAbbr":"HADT"},{"tzkey":"America\/Anchorage","friendlyName":"Anchorage","currentOffset":-8,"observesDst":true,"currentlyDst":true,"currentAbbr":"AKDT"},{"tzkey":"America\/Phoenix","friendlyName":"Phoenix","currentOffset":-7,"observesDst":false,"currentlyDst":false,"currentAbbr":"MST"},{"tzkey":"America\/Los_Angeles","friendlyName":"Los Angeles","currentOffset":-7,"observesDst":true,"currentlyDst":true,"currentAbbr":"PDT"},{"tzkey":"America\/Boise","friendlyName":"Boise","currentOffset":-6,"observesDst":true,"currentlyDst":true,"currentAbbr":"MDT"},{"tzkey":"America\/Chicago","friendlyName":"Chicago","currentOffset":-5,"observesDst":true,"currentlyDst":true,"currentAbbr":"CDT"},{"tzkey":"America\/Detroit","friendlyName":"Detroit","currentOffset":-4,"observesDst":true,"currentlyDst":true,"currentAbbr":"EDT"}]; </script> <br /> <select style="font-size:15px; border:1px solid #ccc; padding:4px" id="timezone_list" class="standard-list" name="timezone"> <option value="America/Los_Angeles" selected="selected">Pacific [PDT -07:00]</option> <option value="America/Boise">Mountain [MDT -06:00]</option> <option value="America/Phoenix">Mountain (Arizona) [MST -07:00]</option> <option value="America/Chicago">Central [CDT -05:00]</option> <option value="America/New_York">Eastern [EDT -04:00]</option> </select> <br /> <select> <option value="Pacific/Midway">Midway [SST -11:00]</option> <option value="Pacific/Niue">Niue [NUT -11:00]</option> <option value="Pacific/Apia">Apia [WST -11:00]</option> <option value="Pacific/Tahiti">Tahiti [TAHT -10:00]</option> <option value="Pacific/Honolulu">Honolulu [HST -10:00]</option> <option value="Pacific/Rarotonga">Rarotonga [CKT -10:00]</option> <option value="Pacific/Fakaofo">Fakaofo [TKT -10:00]</option> <option value="Pacific/Marquesas">Marquesas [MART -09:30]</option> <option value="America/Adak">Adak [HADT -09:00]</option> <option value="Pacific/Gambier">Gambier [GAMT -09:00]</option> <option value="America/Anchorage">Anchorage [AKDT -08:00]</option> <option value="Pacific/Pitcairn">Pitcairn [PST -08:00]</option> <option value="America/Dawson_Creek">Dawson Creek [MST -07:00]</option> <option value="America/Dawson">Dawson [PDT -07:00]</option> <option value="America/Belize">Belize [CST -06:00]</option> <option value="America/Boise">Boise [MDT -06:00]</option> <option value="Pacific/Easter">Easter [EAST -06:00]</option> <option value="Pacific/Galapagos">Galapagos [GALT -06:00]</option> <option value="America/Resolute">Resolute [CDT -05:00]</option> <option value="America/Cancun">Cancun [CDT -05:00]</option> <option value="America/Guayaquil">Guayaquil [ECT -05:00]</option> <option value="America/Lima">Lima [PET -05:00]</option> <option value="America/Bogota">Bogota [COT -05:00]</option> <option value="America/Atikokan">Atikokan [EST -05:00]</option> <option value="America/Caracas">Caracas [VET -04:30]</option> <option value="America/Guyana">Guyana [GYT -04:00]</option> <option value="America/Campo_Grande">Campo Grande [AMT -04:00]</option> <option value="America/La_Paz">La Paz [BOT -04:00]</option> <option value="America/Anguilla">Anguilla [AST -04:00]</option> <option value="Atlantic/Stanley">Stanley [FKT -04:00]</option> <option value="America/Detroit">Detroit [EDT -04:00]</option> <option value="America/Boa_Vista">Boa Vista [AMT -04:00]</option> <option value="America/Santiago">Santiago [CLT -04:00]</option> <option value="America/Asuncion">Asuncion [PYT -04:00]</option> <option value="Antarctica/Rothera">Rothera [ROTT -03:00]</option> <option value="America/Paramaribo">Paramaribo [SRT -03:00]</option> <option value="America/Sao_Paulo">Sao Paulo [BRT -03:00]</option> <option value="America/Argentina/Buenos_Aires">Buenos Aires [ART -03:00]</option> <option value="America/Cayenne">Cayenne [GFT -03:00]</option> <option value="America/Glace_Bay">Glace Bay [ADT -03:00]</option> <option value="America/Argentina/San_Luis">San Luis [WARST -03:00]</option> <option value="America/Araguaina">Araguaina [BRT -03:00]</option> <option value="America/Montevideo">Montevideo [UYT -03:00]</option> <option value="America/St_Johns">St Johns [NDT -02:30]</option> <option value="America/Miquelon">Miquelon [PMDT -02:00]</option> <option value="America/Noronha">Noronha [FNT -02:00]</option> <option value="America/Godthab">Godthab [WGST -02:00]</option> <option value="Atlantic/Cape_Verde">Cape Verde [CVT -01:00]</option> <option value="Atlantic/Azores">Azores [AZOST 00:00]</option> <option value="America/Scoresbysund">Scoresbysund [EGST 00:00]</option> <option value="UTC">UTC [UTC 00:00]</option> <option value="Africa/Abidjan">Abidjan [GMT 00:00]</option> <option value="Africa/Casablanca">Casablanca [WET 00:00]</option> <option value="Africa/Bangui">Bangui [WAT +01:00]</option> <option value="Europe/Guernsey">Guernsey [BST +01:00]</option> <option value="Europe/Dublin">Dublin [IST +01:00]</option> <option value="Africa/Algiers">Algiers [CET +01:00]</option> <option value="Atlantic/Canary">Canary [WEST +01:00]</option> <option value="Africa/Windhoek">Windhoek [WAT +01:00]</option> <option value="Africa/Johannesburg">Johannesburg [SAST +02:00]</option> <option value="Africa/Blantyre">Blantyre [CAT +02:00]</option> <option value="Africa/Tripoli">Tripoli [EET +02:00]</option> <option value="Africa/Ceuta">Ceuta [CEST +02:00]</option> <option value="Asia/Jerusalem">Jerusalem [IDT +03:00]</option> <option value="Africa/Addis_Ababa">Addis Ababa [EAT +03:00]</option> <option value="Africa/Cairo">Cairo [EEST +03:00]</option> <option value="Antarctica/Syowa">Syowa [SYOT +03:00]</option> <option value="Europe/Volgograd">Volgograd [VOLST +04:00]</option> <option value="Europe/Samara">Samara [SAMST +04:00]</option> <option value="Asia/Tbilisi">Tbilisi [GET +04:00]</option> <option value="Europe/Moscow">Moscow [MSD +04:00]</option> <option value="Asia/Dubai">Dubai [GST +04:00]</option> <option value="Indian/Mauritius">Mauritius [MUT +04:00]</option> <option value="Indian/Reunion">Reunion [RET +04:00]</option> <option value="Indian/Mahe">Mahe [SCT +04:00]</option> <option value="Asia/Tehran">Tehran [IRDT +04:30]</option> <option value="Asia/Kabul">Kabul [AFT +04:30]</option> <option value="Asia/Aqtau">Aqtau [AQTT +05:00]</option> <option value="Asia/Ashgabat">Ashgabat [TMT +05:00]</option> <option value="Asia/Oral">Oral [ORAT +05:00]</option> <option value="Asia/Yerevan">Yerevan [AMST +05:00]</option> <option value="Asia/Baku">Baku [AZST +05:00]</option> <option value="Indian/Kerguelen">Kerguelen [TFT +05:00]</option> <option value="Indian/Maldives">Maldives [MVT +05:00]</option> <option value="Asia/Karachi">Karachi [PKT +05:00]</option> <option value="Asia/Dushanbe">Dushanbe [TJT +05:00]</option> <option value="Asia/Samarkand">Samarkand [UZT +05:00]</option> <option value="Antarctica/Mawson">Mawson [MAWT +05:00]</option> <option value="Asia/Colombo">Colombo [IST +05:30]</option> <option value="Asia/Kathmandu">Kathmandu [NPT +05:45]</option> <option value="Indian/Chagos">Chagos [IOT +06:00]</option> <option value="Asia/Bishkek">Bishkek [KGT +06:00]</option> <option value="Asia/Almaty">Almaty [ALMT +06:00]</option> <option value="Antarctica/Vostok">Vostok [VOST +06:00]</option> <option value="Asia/Yekaterinburg">Yekaterinburg [YEKST +06:00]</option> <option value="Asia/Dhaka">Dhaka [BDT +06:00]</option> <option value="Asia/Thimphu">Thimphu [BTT +06:00]</option> <option value="Asia/Qyzylorda">Qyzylorda [QYZT +06:00]</option> <option value="Indian/Cocos">Cocos [CCT +06:30]</option> <option value="Asia/Rangoon">Rangoon [MMT +06:30]</option> <option value="Asia/Jakarta">Jakarta [WIT +07:00]</option> <option value="Asia/Hovd">Hovd [HOVT +07:00]</option> <option value="Antarctica/Davis">Davis [DAVT +07:00]</option> <option value="Asia/Bangkok">Bangkok [ICT +07:00]</option> <option value="Indian/Christmas">Christmas [CXT +07:00]</option> <option value="Asia/Omsk">Omsk [OMSST +07:00]</option> <option value="Asia/Novokuznetsk">Novokuznetsk [NOVST +07:00]</option> <option value="Asia/Choibalsan">Choibalsan [CHOT +08:00]</option> <option value="Asia/Ulaanbaatar">Ulaanbaatar [ULAT +08:00]</option> <option value="Asia/Brunei">Brunei [BNT +08:00]</option> <option value="Antarctica/Casey">Casey [WST +08:00]</option> <option value="Asia/Singapore">Singapore [SGT +08:00]</option> <option value="Asia/Manila">Manila [PHT +08:00]</option> <option value="Asia/Hong_Kong">Hong Kong [HKT +08:00]</option> <option value="Asia/Krasnoyarsk">Krasnoyarsk [KRAST +08:00]</option> <option value="Asia/Makassar">Makassar [CIT +08:00]</option> <option value="Asia/Kuala_Lumpur">Kuala Lumpur [MYT +08:00]</option> <option value="Australia/Eucla">Eucla [CWST +08:45]</option> <option value="Pacific/Palau">Palau [PWT +09:00]</option> <option value="Asia/Tokyo">Tokyo [JST +09:00]</option> <option value="Asia/Dili">Dili [TLT +09:00]</option> <option value="Asia/Jayapura">Jayapura [EIT +09:00]</option> <option value="Asia/Pyongyang">Pyongyang [KST +09:00]</option> <option value="Asia/Irkutsk">Irkutsk [IRKST +09:00]</option> <option value="Australia/Adelaide">Adelaide [CST +09:30]</option> <option value="Asia/Yakutsk">Yakutsk [YAKST +10:00]</option> <option value="Australia/Currie">Currie [EST +10:00]</option> <option value="Pacific/Port_Moresby">Port Moresby [PGT +10:00]</option> <option value="Pacific/Guam">Guam [ChST +10:00]</option> <option value="Pacific/Truk">Truk [TRUT +10:00]</option> <option value="Antarctica/DumontDUrville">DumontDUrville [DDUT +10:00]</option> <option value="Australia/Lord_Howe">Lord Howe [LHST +10:30]</option> <option value="Pacific/Ponape">Ponape [PONT +11:00]</option> <option value="Pacific/Kosrae">Kosrae [KOST +11:00]</option> <option value="Antarctica/Macquarie">Macquarie [MIST +11:00]</option> <option value="Pacific/Noumea">Noumea [NCT +11:00]</option> <option value="Pacific/Efate">Efate [VUT +11:00]</option> <option value="Pacific/Guadalcanal">Guadalcanal [SBT +11:00]</option> <option value="Asia/Sakhalin">Sakhalin [SAKST +11:00]</option> <option value="Asia/Vladivostok">Vladivostok [VLAST +11:00]</option> <option value="Pacific/Norfolk">Norfolk [NFT +11:30]</option> <option value="Asia/Kamchatka">Kamchatka [PETST +12:00]</option> <option value="Pacific/Tarawa">Tarawa [GILT +12:00]</option> <option value="Asia/Magadan">Magadan [MAGST +12:00]</option> <option value="Pacific/Wallis">Wallis [WFT +12:00]</option> <option value="Pacific/Kwajalein">Kwajalein [MHT +12:00]</option> <option value="Pacific/Funafuti">Funafuti [TVT +12:00]</option> <option value="Pacific/Nauru">Nauru [NRT +12:00]</option> <option value="Asia/Anadyr">Anadyr [ANAST +12:00]</option> <option value="Antarctica/McMurdo">McMurdo [NZST +12:00]</option> <option value="Pacific/Wake">Wake [WAKT +12:00]</option> <option value="Pacific/Fiji">Fiji [FJT +12:00]</option> <option value="Pacific/Chatham">Chatham [CHAST +12:45]</option> <option value="Pacific/Enderbury">Enderbury [PHOT +13:00]</option> <option value="Pacific/Tongatapu">Tongatapu [TOT +13:00]</option> <option value="Pacific/Kiritimati">Kiritimati [LINT +14:00]</option> </select>
+4
16 . '11 12:49
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.

jQuery, Chosen , . , , , .

- JS IP- , . , .

- , . , , . .

, , , , , .

+3
03 . '11 5:26
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, , : http://www.ultramegatech.com/blog/2009/04/working-with-time-zones-in-php

+3
16 . '11 1:15
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( ) , , , (, - 4 ), // .

, :

 function Timezones($country = null, $continent = null) { $result = array(); if (is_array($timezones = DateTimeZone::listIdentifiers()) === true) { $timestamp = strtotime('-6 months', time()); if ((strlen($country) == 2) && (defined('DateTimeZone::PER_COUNTRY') === true)) { $timezones = DateTimeZone::listIdentifiers(DateTimeZone::PER_COUNTRY, $country); } foreach (preg_grep('~' . preg_quote($continent, '~') . '/~i', $timezones) as $id) { $timezone = new DateTimeZone($id); if (is_array($transitions = $timezone->getTransitions()) === true) { while ((isset($result[$id]) !== true) && (is_null($transition = array_shift($transitions)) !== true)) { $result[$id] = (($transition['isdst'] !== true) && ($transition['ts'] >= $timestamp)) ? $transition['offset'] : null; } } } if (array_multisort($result, SORT_NUMERIC, preg_replace('~^[^/]+/~', '', array_keys($result)), SORT_REGULAR, $result) === true) { foreach ($result as $key => $value) { $result[$key] = sprintf('(GMT %+03d:%02u) %s', $value / 3600, abs($value) % 3600 / 60, ltrim(strstr($key, '/'), '/')); } } } return str_replace(array(' +00:00', '_', '/'), array('', ' ', ' - '), $result); }
  • ( /, / ).
  • ()
  • ,

http://www.ideone.com/VYWtw http://jsfiddle.net/hSxa8/embedded/result/ .

+2
26 . '11 15:34
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/ . 88 , .

+1
16 . '11 23:44
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, , TZ, php. , , , /- , .

Github: https://github.com/ryanzor/timezone-dropdown

: http://lifesnow.com/time-zone-dropdown/

 <?php /** * * This get the timezone offset based on the olson code. * In this code it is used to find the offset between the given olson code and UTC, but can be used to convert other differences * * @param string $remote_tz TZ string * @param string $origin_tz TZ string, defaults to UTC * @return int offset in seconds */ function ln_get_timezone_offset($remote_tz, $origin_tz = 'UTC') { $origin_dtz = new DateTimeZone($origin_tz); $remote_dtz = new DateTimeZone($remote_tz); $origin_dt = new DateTime("now", $origin_dtz); $remote_dt = new DateTime("now", $remote_dtz); $offset = $remote_dtz->getOffset($remote_dt) - $origin_dtz->getOffset($origin_dt); return $offset; } /** * Converts a timezone difference to be displayed as GMT +/- * * @param string $timezone TZ time * @return string text with GMT */ function ln_get_timezone_offset_text($timezone){ $time = ln_get_timezone_offset($timezone); $minutesOffset = $time/60; $hours = floor(($minutesOffset)/60); $minutes = abs($minutesOffset%60); $minutesFormatted = sprintf('%02d', $minutes); $plus = ''; if($time >= 0){ $plus = '+'; } $GMToff = 'GMT '.$plus.$hours.':'.$minutesFormatted; return $GMToff; } /** * This is for formatting how the timezone option displays. * It can be converted to include current time, not include gmt or anything like that. * * @param string $timezone TZ time * @param string $text format select box option */ function ln_display_timezone_option($timezone, $text){ ?> <option value="<?php echo $timezone; ?>"><?php echo '('.ln_get_timezone_offset_text($timezone).') '.$text; ?></option> <?php } /** * The concise list of timezones. This generates the html wherever it is called */ function ln_display_timezone_selector(){ ?> <select name="timezoneSelectDropdown"> <?php ln_display_timezone_option('Pacific/Auckland', 'International Date Line West'); ln_display_timezone_option('Pacific/Midway', 'Midway Island, Samoa'); ln_display_timezone_option('US/Hawaii', 'Hawaii'); ln_display_timezone_option('US/Alaska', 'Alaska'); ln_display_timezone_option('US/Pacific', 'Pacific Time (US & Canada)'); ln_display_timezone_option('America/Tijuana', 'Tijuana, Baja California'); ln_display_timezone_option('America/Phoenix', 'Arizona'); ln_display_timezone_option('America/Chihuahua', 'Chihuahua, La Paz, Mazatlan'); ln_display_timezone_option('US/Mountain', 'Mountain Time (US & Canada)'); ln_display_timezone_option('America/Cancun', 'Central America'); ln_display_timezone_option('US/Central', 'Central Time (US & Canada)'); ln_display_timezone_option('America/Mexico_City', 'Guadalajara, Mexico City, Monterrey'); ln_display_timezone_option('Canada/Saskatchewan', 'Saskatchewan'); ln_display_timezone_option('America/Lima', 'Bogota, Lima, Quito, Rio Branco'); ln_display_timezone_option('US/Eastern', 'Eastern Time (US & Canada)'); ln_display_timezone_option('US/East-Indiana', 'Indiana (East)'); ln_display_timezone_option('Canada/Atlantic', 'Atlantic Time (Canada)'); ln_display_timezone_option('America/Caracas', 'Caracas, La Paz'); ln_display_timezone_option('America/Manaus', 'Manaus'); ln_display_timezone_option('America/Santiago', 'Santiago'); ln_display_timezone_option('Canada/Newfoundland', 'Newfoundland'); ln_display_timezone_option('America/Sao_Paulo', 'Brasilia'); ln_display_timezone_option('America/Argentina/Buenos_Aires', 'Buenos Aires, Georgetown'); ln_display_timezone_option('America/Godthab', 'Greenland'); ln_display_timezone_option('America/Montevideo', 'Montevideo'); ln_display_timezone_option('Atlantic/South_Georgia', 'Mid-Atlantic'); ln_display_timezone_option('Atlantic/Cape_Verde', 'Cape Verde Is.'); ln_display_timezone_option('Atlantic/Azores', 'Azores'); ln_display_timezone_option('Africa/Casablanca', 'Casablanca, Monrovia, Reykjavik'); ln_display_timezone_option('UTC', 'Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London'); ln_display_timezone_option('Europe/Amsterdam', 'Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna'); ln_display_timezone_option('Europe/Belgrade', 'Belgrade, Bratislava, Budapest, Ljubljana, Prague'); ln_display_timezone_option('Europe/Brussels', 'Brussels, Copenhagen, Madrid, Paris'); ln_display_timezone_option('Europe/Sarajevo', 'Sarajevo, Skopje, Warsaw, Zagreb'); ln_display_timezone_option('Africa/Windhoek', 'West Central Africa'); ln_display_timezone_option('Asia/Amman', 'Amman'); ln_display_timezone_option('Europe/Athens', 'Athens, Bucharest, Istanbul'); ln_display_timezone_option('Asia/Beirut', 'Beirut'); ln_display_timezone_option('Africa/Cairo', 'Cairo'); ln_display_timezone_option('Africa/Harare', 'Harare, Pretoria'); ln_display_timezone_option('Europe/Helsinki', 'Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius'); ln_display_timezone_option('Asia/Jerusalem', 'Jerusalem'); ln_display_timezone_option('Europe/Minsk', 'Minsk'); ln_display_timezone_option('Africa/Windhoek', 'Windhoek'); ln_display_timezone_option('Asia/Kuwait', 'Kuwait, Riyadh, Baghdad'); ln_display_timezone_option('Europe/Moscow', 'Moscow, St. Petersburg, Volgograd'); ln_display_timezone_option('Africa/Nairobi', 'Nairobi'); ln_display_timezone_option('Asia/Tbilisi', 'Tbilisi'); ln_display_timezone_option('Asia/Tehran', 'Tehran'); ln_display_timezone_option('Asia/Muscat', 'Abu Dhabi, Muscat'); ln_display_timezone_option('Asia/Baku', 'Baku'); ln_display_timezone_option('Asia/Yerevan', 'Yerevan'); ln_display_timezone_option('Asia/Kabul', 'Kabul'); ln_display_timezone_option('Asia/Yekaterinburg', 'Yekaterinburg'); ln_display_timezone_option('Asia/Karachi', 'Islamabad, Karachi, Tashkent'); ln_display_timezone_option('Asia/Kolkata', 'Sri Jayawardenepura'); ln_display_timezone_option('Asia/Kolkata', 'Chennai, Kolkata, Mumbai, New Delhi'); ln_display_timezone_option('Asia/Kathmandu', 'Kathmandu'); ln_display_timezone_option('Asia/Almaty', 'Almaty, Novosibirsk'); ln_display_timezone_option('Asia/Dhaka', 'Astana, Dhaka'); ln_display_timezone_option('Asia/Rangoon', 'Yangon (Rangoon)'); ln_display_timezone_option('Asia/Bangkok', 'Bangkok, Hanoi, Jakarta'); ln_display_timezone_option('Asia/Krasnoyarsk', 'Krasnoyarsk'); ln_display_timezone_option('Asia/Shanghai', 'Beijing, Chongqing, Hong Kong, Urumqi'); ln_display_timezone_option('Asia/Singapore', 'Kuala Lumpur, Singapore'); ln_display_timezone_option('Asia/Irkutsk', 'Irkutsk, Ulaan Bataar'); ln_display_timezone_option('Australia/Perth', 'Perth'); ln_display_timezone_option('Asia/Taipei', 'Taipei'); ln_display_timezone_option('Asia/Tokyo', 'Osaka, Sapporo, Tokyo'); ln_display_timezone_option('Asia/Seoul', 'Seoul'); ln_display_timezone_option('Asia/Yakutsk', 'Yakutsk'); ln_display_timezone_option('Australia/Adelaide', 'Adelaide'); ln_display_timezone_option('Australia/Darwin', 'Darwin'); ln_display_timezone_option('Australia/Brisbane', 'Brisbane'); ln_display_timezone_option('Australia/Sydney', 'Canberra, Melbourne, Sydney'); ln_display_timezone_option('Australia/Hobart', 'Hobart'); ln_display_timezone_option('Pacific/Guam', 'Guam, Port Moresby'); ln_display_timezone_option('Asia/Vladivostok', 'Vladivostok'); ln_display_timezone_option('Asia/Magadan', 'Magadan, Solomon Is., New Caledonia'); ln_display_timezone_option('Pacific/Auckland', 'Auckland, Wellington'); ln_display_timezone_option('Pacific/Fiji', 'Fiji, Kamchatka, Marshall Is.'); ln_display_timezone_option('Pacific/Tongatapu', 'Nuku\'alofa'); ?> </select> <?php } ?>
+1
07 . '13 14:44
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@Zubair1, , :

 foreach(timezone_identifiers_list() as $tz) { $current_dt = new DateTime('now', new DateTimeZone($tz)); echo '<option value=' . $tz . '>' . str_replace('_', ' ', $tz) . ' - ' // Some timezones contain '_' . $current_dt->format('\G\M\TP') // Add the timezone in GMT . ' (' . $current_dt->format('H:i') . ')'; // Add the time in $tz }

- : Europe/Brussels - GMT+02:00 (23:57)
(GMT == UTC) ( , ).

0
18 . '19 22:06
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