Regexdrill12-hour times with AM or PM
A regex exercise from Regexdrill. Solve it with a pattern box with live highlighting in your browser, checked against hidden test strings, and it is checked the moment you submit.
The task
The whole line must match. Match an hour from 1 to 12 with no leading zero, a colon, two-digit minutes, an optional space and AM or PM in capitals.
What this exercise teaches
(?:[1-9]|1[0-2]):[0-5]\d ?(?:AM|PM) refuses 13, 0 and 09 as hours.
A hint if you get stuck
Hours are a single digit 1 to 9, or 1 followed by 0 to 2.
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