Time Format Validator

Validate time strings.

Validate time format (HH:MM, HH:MM:SS, 12h) instantly. Free time string checker.

Calculator Inputs

About Time Check

Validate time strings.

Accepts 24h, 12h AM/PM, with optional seconds.

Where it is used

Form validation, CSV cleanup, scheduling apps.

How to use the Time Check

  1. Time String — enter the value (e.g. 14:30 or 02:30 PM).
  2. Calculate — press the Calculate button to see the result instantly above.

Formula

HH 00-23, MM/SS 00-59, or 12h with AM/PM.

Examples

Example

time:14:30
Result: VALID ✓ 24h (14:30)

Frequently Asked Questions

Seconds allowed?
Yes: HH:MM:SS.