RegEx - Time Validation ((h)h:mm)

Question

/^\\d{1,2}[:][0-5][0-9]$/

is what I have. this limits minutes to 00-59. It does not, however, limit hours to between 0 and 12. For similarity and unifo

Answer 1

Assuming you are working in 12 hour time, 0 is not a valid hour and should also be excluded (as pointed out by Jon). Here is a basic solution:

/^(0?[1-9]|1[012]):[0-5][0-9]$/

A 24-hour time regex matcher that works similarly:

/^([01]?[0-9]|2[0-3]):[0-5][0-9]$/