Military time converter
Convert 12-hour time to 24-hour (military) time and back. Type 6:30 PM and get 18:30 and 1830.
Not legal, tax or payroll advice. General information only; results are estimates. Read the full notice.
Examples: 6:30 PM is 18:30 (1830 without a colon). 1830 is 6:30 PM. 0000 is 12:00 AM.
Estimate based on what you entered. Not legal or payroll advice; check it against your employer's records.
How to use it
- To get 24-hour time, type a time with AM or PM in the 12-hour time box, like 6:30 PM.
- To get AM and PM, type a 24-hour time in the 24-hour time box, like 1830 or 18:30.
- Read the answer, shown with and without a colon.
Need the whole day on one page?
Print the military time chart for every hour of the day. To find the time between two times, use the time duration calculator.
Questions
How do I convert 12-hour time to military time?
For AM times, keep the hour (12 AM becomes 00) and write two digits. For PM times, add 12 to the hour (12 PM stays 12). So 6:30 PM is 18:30, or 1830 with no colon.
How do I convert military time to 12-hour time?
If the hour is 13 or more, subtract 12 and call it PM. 1830 is 18 - 12 = 6, so 6:30 PM. Hours 01 to 11 are AM, 12 is 12 PM and 00 is 12 AM.
Can I type 1830 and 18:30?
Yes. Both work in the 24-hour box. In the 12-hour box, include AM or PM.
What is 0000 in 12-hour time?
0000 is 12:00 AM, the start of the day.