rather put the work to it, let's say you make an agreement, if the parameter passed is null, you can try passing something like my_conventional_null_indicator
to look like this instead:
http://localhost:6251/time/saturdau/value1/34//70
do it
http://localhost:6251/time/saturdau/value1/34/my_conventional_null_indicator/70
but the best way would still be a common way
http:
RouteValueDictionary.