How do you match 12 hour time hh:mm in a regex?

Question

How could you match 12 hour time in a regex-- in other words match 12:30 but not 14:74? Thanks!

Answer 1

You could use this one:

/((?:1[0-2])|(?:0?[0-9])):([0-5][0-9]) ?([ap]m)/

/1 => hour
/2 => minute
/3 => am/pm