12 Hour to 24 Hour Time Converter
Convert a 12-hour AM or PM time to the 24-hour clock, with the 12 AM and 12 PM edge cases handled.
Independently verified for accuracy
Calculator by Toolsloft ↗- 24-hour time
- 09:30
Convert a 12-hour time with AM or PM into 24-hour, or military, time. The tricky cases, 12 AM being midnight and 12 PM being noon, are handled for you. Enter the hour, minute, and AM or PM to read the 24-hour result.
How this is calculated
On the 24-hour clock, AM hours stay the same except 12 AM, which becomes 00. PM hours add 12 except 12 PM, which stays 12. So 12:00 AM is 00:00, 1:15 PM is 13:15, and 12:00 PM is 12:00.
How to use
- Enter the hour from 1 to 12.
- Enter the minutes.
- Choose AM or PM, then read the 24-hour time.
Examples
- Midnight:
12:00 AM = 00:00 - Noon:
12:00 PM = 12:00 - Early afternoon:
1:15 PM = 13:15
FAQ
- What is 12 AM in 24-hour time?
- 12 AM is midnight, which is 00:00 on the 24-hour clock.
- What is 12 PM in 24-hour time?
- 12 PM is noon, which is 12:00 on the 24-hour clock.