Regex for time in hh:mm am/pm format

Question

I need to make strict validation of input for a school project, time in format HH:MM am/pm. So far i\'ve got this RegEx expression:

(([01]?[0-9]):([0-5][0-9         


        

Answer 1

  ([0-9]|0[0-9]|1[0-9]|2[0-3]):([0-5][0-9])\s*([AaPp][Mm])

For the following:

10:00AM

10:00PM

10:00am

10:00pm

10:00 pm

10:00 am

10:30PM

23:46am

Answer 2

I used this regex

([0-9]{2})\\/([0-9]{2})\\/([0-9]{4}) ([0-9]{2}):([0-9]{2}):([0-9]{2}) (am|pm)

You can try this. Hope this helps!

Answer 3

  String regex = "([01]?[0-9]|2[0-3]):[0-5][0-9]";
  

This will work for the 24 hours validation

Answer 4

This regex has 3 parts, separated by the OR operator.
Each part allows for a type of HH
They are 0[1-9], [1-9], and 1[0-2].

/(0[1-9]:[0-5][0-9]((\ ){0,1})((AM)|(PM)|(am)|(pm)))|([1-9]:[0-5][0-9]((\ ){0,1})((AM)|(PM)|(am)|(pm)))|(1[0-2]:[0-5][0-9]((\ ){0,1})((AM)|(PM)|(am)|(pm)))/

Answer 5

you can use:

\b((1[0-2]|0?[1-9]):([0-5][0-9]) ([AaPp][Mm]))
EDIT:         ^ changed this from 0-1 to not accept 00:00