RegexdrillISO 8601 timestamps
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 UTC timestamp like 2025-03-14T09:30:00Z: a date YYYY-MM-DD with a month from 01 to 12 and a day from 01 to 31, the capital letter T, a 24-hour time HH:MM:SS with hours 00 to 23 and minutes and seconds 00 to 59, and a final capital Z.
What this exercise teaches
Long patterns are short ones glued together: the date ranges, a literal T, the time ranges and a literal Z. Each number range is an alternation of digit shapes, like [01]\d|2[0-3] for the hours.
A hint if you get stuck
Reuse the ranges from the date and the 24-hour time exercises, and put the literal T between them and the literal Z at the end.
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