Dates & Timesflags: g

12-Hour Time with AM/PM

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

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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
(?:0?[1-9]|1[0-2]):[0-5]\d(?::[0-5]\d)?\s?[AaPp][Mm]   (flags: g)

Raw source: (?:0?[1-9]|1[0-2]):[0-5]\d(?::[0-5]\d)?\s?[AaPp][Mm]

How it works

Hour alternation covers 1–12 (optional leading zero), minute/second classes enforce 00–59, optional whitespace separates the AM/PM suffix. Case-insensitive AM/PM via character classes.

Examples

Input

9:30 AM

Matches

  • 9:30 AM

Input

11:45:15 pm

Matches

  • 11:45:15 pm

Input

13:00 PM

No match

—

Common use cases

  • •US-style time input validation
  • •Chat timestamp parsing
  • •Calendar event extraction
  • •Human-readable log scraping

Related patterns

24-Hour Time

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

ISO 8601 Date-Time

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

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.

Related concepts

Alternation with the | Operator

Concept

The pipe | matches either the expression on its left or on its right. Combine with groups to alternate over a subpattern.

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