Javascript regular expression to validate time format "09:15 AM"

Question

I tried with the following regular expression but it is not working as expected.

/^([01]?[0-9]|2[0-3]):[0-5][0-9]{2}(AM|PM)/

If you are foloowing 24 hour clock, why are you using AM/PM in the forst place. Try with `/(0[0-9]|1[0-9]|2[0-3]):[0-5][0-9](A|P)M/` — Aniket Sinha, Oct 06 '15 at 06:22
propbably a duplicate of http://stackoverflow.com/questions/7536755/regular-expression-for-matching-hhmm-time-format — shemy, Oct 06 '15 at 06:24
@PradeepChalla Add the input string, and the JS code to extract date from it — Tushar, Oct 06 '15 at 06:38

Rahul Tripathi · Accepted Answer · 2015-10-06T06:25:29.717

1

You can try using this regex:

^(0?[1-9]|1[012])(:[0-5]\d) [APap][mM]$

edited Oct 06 '15 at 06:25

answered Oct 06 '15 at 06:23

Rahul Tripathi

`[APap][mM]` why not `i` flag. Also missing `$` anchor – Tushar Oct 06 '15 at 06:23
thanks @Rahul I changed as per tushar comments and working fine /^(0?[1-9]|1[012])(:[0-5]\d) (A|P)M$/i – Pradeep Challa Oct 06 '15 at 06:40
@PradeepChalla:- You are welcome Yes you can change to make it more compact. – Rahul Tripathi Oct 06 '15 at 06:41

score 0 · Answer 2 · answered Oct 06 '15 at 06:23

0

You can try like this

/^[1-12]:[0-59](A|P)M$/i

answered Oct 06 '15 at 06:23

Man Programmer

score 0 · Answer 3 · answered Oct 06 '15 at 06:23

0

You are missing space before AM|PM and there is unnecessary {2} The following changes works for me:

^([01]?[0-9]|2[0-3]):[0-5][0-9] (AM|PM)

On the string

09:15 AM

answered Oct 06 '15 at 06:23

Igal S.

3 Answers3