Regular expression for matching time in military (24 hour) format

Question

I would like a JavaScript regular expression that will match time using the 24 hour clock, where the time is given with or without the colon.

For example, I would li

Answer 1

I know this is an old question but here's a regex I came up with which seems to work.

^(([[0|1]\d)|(2[0-3]))[:]?([0-5]\d)$

You can edit it on this regex site

Edit I just realised that this answer ended up exactly the same as the accepted answer but I will leave it here at least for the value of the 'do it yourself' link