Validate that input is in this time format - “HH:MM” [closed]

Answer 1

For a 12-hour match that can do am and pm, use this

/^(1[0-2]|0?[1-9]):[0-5][0-9] (AM|PM)$/i

It will handle 01:20 am or 1:20 AM. The examples above for 12 hour were incorrect because you could potentially do:

00:20

which is not a valid 12 hour format.