The problem is that your replacement is not $1 , it is $1000 . Visual Studio does not know that you do not want to include these 3 0 in your backreference.
You can use {} around your trackback to tell Visual Studio what to use.
Replace: time="${1}000"
Be sure to note that Visual Studio 2010 and later used a different regular expression syntax, so this only applies to Visual Studio 2012 (and, presumably, for any new versions).
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