time regex for 12hr am and pm

Question

I have made this regex

 ^(00|0[0-9]|1[012]):[0-5][0-9]? ((a|p)m|(A|P)M)$

but the problem is it is accepting 00:00 am which i dont want to

Answer 1

You could use:

Regex.IsMatch(input, @"^(0[1-9]|1[0-2]):[0-5][0-9] [ap]m$", RegexOptions.IgnoreCase);