Military time converter
Convert 24-hour military time to standard 12-hour time and back. Type in either box and the other converts as you go. Free, no signup, and nothing leaves your browser.
Type in either box and the other one converts as you go.
What is military time?
A 24-hour clock that runs from 0000 at midnight to 2359 one minute before the next midnight, with no AM or PM. It is written without a colon and usually spoken as "fourteen thirty hours". Most of the world uses the 24-hour clock in writing; the US military convention is the same system with its own notation.
How do you convert military time to standard time?
For 0000 to 0959, drop the leading zero and add AM, so 0930 is 9:30 AM. For 1000 to 1159, add AM as-is. For 1200 to 1259, add PM as-is, so 1230 is 12:30 PM. For 1300 to 2359, subtract 12 from the hours and add PM, so 1430 is 2:30 PM.
What is 0000 in military time?
Midnight, the start of the day. It is spoken as "zero hundred hours". Some organisations write midnight as 2400 when it means the end of a day rather than the start of one, which is why 2359 is often preferred for a deadline: it is unambiguous about which day it belongs to.
What is 12 PM in military time?
1200. Noon is 1200 and midnight is 0000, which is the pair people most often get backwards. The mistake comes from treating 12 PM as if the 12 behaves like the other hours, where PM adds twelve.
Military time chart
Every hour of the day, in both notations. Minutes are identical in the two systems, so only the hour changes: 1430 is 2:30 PM for the same reason 1400 is 2:00 PM.
| Military | Standard | Military | Standard |
|---|---|---|---|
| 0000 | 12:00 AM | 1200 | 12:00 PM |
| 0100 | 1:00 AM | 1300 | 1:00 PM |
| 0200 | 2:00 AM | 1400 | 2:00 PM |
| 0300 | 3:00 AM | 1500 | 3:00 PM |
| 0400 | 4:00 AM | 1600 | 4:00 PM |
| 0500 | 5:00 AM | 1700 | 5:00 PM |
| 0600 | 6:00 AM | 1800 | 6:00 PM |
| 0700 | 7:00 AM | 1900 | 7:00 PM |
| 0800 | 8:00 AM | 2000 | 8:00 PM |
| 0900 | 9:00 AM | 2100 | 9:00 PM |
| 1000 | 10:00 AM | 2200 | 10:00 PM |
| 1100 | 11:00 AM | 2300 | 11:00 PM |
Why the 24-hour clock exists
It removes an ambiguity that costs real money. AM and PM produce two candidate times for every reading, and a shift, a flight or a deadline written as 12:00 is genuinely unclear without context. On a 24-hour clock every instant in the day has exactly one name.
The same instinct is worth applying to a working day. “This morning” and “most of Tuesday” are the AM and PM of time tracking: usable in conversation, useless the moment you want to compare one week against another.
Or stop filling these in
A calculator can only add up what you remembered to write down, and what you write down a week later is smoother and more purposeful than the week was. Cronus records which app and window you were in and works out what the time was in service of, automatically. No timer to start, so the chaotic days produce a record instead of a gap.
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Related: time duration calculator, time card calculator, and minutes to decimal converter.