Military Time Converter
Convert between 12-hour (am/pm) and 24-hour (military) time.
About the Military Time Converter
The 24-hour clock runs from 00:00 (midnight) to 23:59. Military time is written without a colon and spoken as “fourteen thirty hours”. For pm times from 1 pm, add 12 to the hour; 12 am is 0000 and 12 pm (noon) is 1200.
The formula
pm hours: 24-hour = hour + 12 (except 12 pm = 12); 12 am = 00
Conversion chart
| 12-hour | 24-hour |
|---|---|
| 12:00 am | 0000 |
| 6:00 am | 0600 |
| 12:00 pm | 1200 |
| 1:00 pm | 1300 |
| 6:00 pm | 1800 |
| 11:59 pm | 2359 |
Worked example
Example: 24-hour (military) time = 2145
- Input: Time (e.g. 2:30 pm or 1430): 9:45 pm.
- Formula: pm hours: 24-hour = hour + 12 (except 12 pm = 12); 12 am = 00
- Result: 24-hour (military) time = 2145
Questions people ask
Is midnight 0000 or 2400?
0000 starts a day; 2400 is sometimes used to mean the end of a day.
Why use 24-hour time?
It removes am/pm confusion, which matters in medicine, transport and the military.