Regexdrill24-hour times HH:MM
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 a 24-hour time from 00:00 to 23:59 with two-digit hours and minutes.
What this exercise teaches
(?:[01]\d|2[0-3]):[0-5]\d covers every valid hour and minute and nothing else.
A hint if you get stuck
Hours are 00 to 19 or 20 to 23. Minutes start with 0 to 5.
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