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Title Test Details mm/dd/yyyy hh:MM DateTime, time obligatory
Expression
(?n:^(?=\d)((?<day>31(?!(.0?[2469]|11))|30(?!.0?2)|29(?(.0?2)(?=.{3,4}(19|[2-9]\d)(0[48]|[2468][048]|[13579][26])|(16|[2468][048]|[3579][26])00))|0?[1-9]|1\d|2[0-8])(?<sep>[/.-])(?<month>0?[1-9]|1[012])\2(?<year>(19|[2-9]\d)\d{2})(?:(?=\x20\d)\x20|$))?(?<time>([01]\d|2[0-3])(:[0-5]\d){1})$)
Description
Based on Michael Ash's expression. This regex will validate only datetime, not only date or only time. Dates are in the DD/MM/YYYY HH:mm format and validated for months, number of days in a month and leap years (29/2) Date field can be separated by matched periods(.), dashes(-) or forward slashes(/). Year range 1900-9999 Time is in 24 hour military format (HH:mm:SS), from 00:00:00 to 23:59:59, where hours and minutes fields are required, including leading 0 for hours less than 10. Datetime is the above date and time formats separated by a space, with the date first (DD/MM/YYYY HH:mm) !IMPORTANT NOTE: your regex engine must support lookaheads and named groups to use this expression
Matches
1/31/2002 10:59 | 2/29/2004 11:03
Non-Matches
1/32/2002 10:59 | 2/29/2003 11:03
Author Rating: The rating for this expression. Wouter Hibma
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