Convert between 12-hour and 24-hour (military) time.
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How do you convert 12-hour time to military (24-hour) time?
For PM times other than 12 PM, add 12 to the hour; 12 AM becomes 00 and 12 PM stays 12. To go back, hours 13–23 map to 1–11 PM, 00 maps to 12 AM and 12 stays 12 PM. The 24-hour clock has no AM/PM, removing ambiguity at midnight and noon. Example: 2:30 PM becomes 14:30, and 00:00 is 12:00 AM (midnight).
Understanding your result
The 24-hour clock runs from 00:00 to 23:59 with no AM or PM, which removes the ambiguity around midnight and noon. Midnight is 00:00 and noon is 12:00; the minutes are identical in both systems.
Formula and method
For PM times other than 12 PM, add 12 to the hour; 12 AM becomes 00 and 12 PM stays 12. To go back, hours 13–23 map to 1–11 PM, 00 maps to 12 AM and 12 stays 12 PM.
Worked example
2:30 PM becomes 14:30, and 00:00 is 12:00 AM (midnight).
How to use this tool
- Choose the direction to convert.
- Type the time (e.g. 2:30 PM or 1330).
- Read the converted time and spoken form.
Common mistakes to avoid
- Writing midnight as 24:00 instead of 00:00.
- Turning 12:30 PM into 24:30 instead of 12:30.
About the Military Time Converter
The Military Time Converter switches a time between the 12-hour AM/PM clock and the 24-hour (military) clock. It handles midnight and noon correctly and shows the spoken form used on radio and in the forces.
Who should use this tool
Military and emergency personnel, nurses, pilots, travellers and anyone reading a 24-hour timetable.
Benefits
- Converts both directions instantly.
- Handles midnight (00:00) and noon (12:00) correctly.
- Shows the spoken “zero-eight-thirty hours” form.
- Accepts 13:30 or 1330 input styles.
Practical use cases
- Reading a 24-hour train or flight timetable.
- Converting a shift time written in military format.
- Learning how to say times the military way.
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Frequently asked questions
Is midnight 0000 or 2400?
Midnight is normally written 00:00 (the start of the day). 24:00 is sometimes used to mark the end of a day, but 00:00 is the standard.
What is 12 PM in military time?
Noon (12 PM) is 12:00. Midnight (12 AM) is 00:00.