Dates & Timesflags: g

24-Hour Time

Match 24-hour time formats HH:MM or HH:MM:SS with valid hour (00–23) and minute/second (00–59) ranges.

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Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d)?   (flags: g)

Raw source: (?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d)?

How it works

Hour alternation enforces 00–23, minute/second classes enforce 00–59. The optional :SS group makes seconds optional.

Examples

Input

14:30

Matches

  • 14:30

Input

23:59:59

Matches

  • 23:59:59

Input

25:00

No match

—

Common use cases

  • •Log timestamp extraction
  • •Scheduling input validation
  • •Transit/flight time parsing
  • •Analytics time-bucket aggregation

Related patterns

12-Hour Time with AM/PM

Dates & Times

Match 12-hour time formats with AM or PM suffix — e.g. 9:30 AM, 11:45:15 pm.

European Date Format (DD/MM/YYYY)

Dates & Times

Match European-style dates in DD/MM/YYYY format with valid day (01–31) and month (01–12) ranges.

ISO 8601 Date

Dates & Times

Match dates in ISO 8601 format: YYYY-MM-DD with valid month (01–12) and day (01–31) ranges.

ISO 8601 Date-Time

Dates & Times

Match full ISO 8601 date-times with timezone offset or Z suffix (e.g. 2024-01-15T14:30:00Z).

←PreviousEuropean Date Format (DD/MM/YYYY)
All patterns
Next12-Hour Time with AM/PM→