DailyCalc

Military Time Converter (24-Hour Clock)

Convert 12-hour times to military time and back, one or many.

Type a 12-hour time (3:45 PM) or a military time (1545). It converts the other way.

Convert a list of times

One time per line, or separated by commas. Up to 100 at once; mix both formats if you like.

Paste times above to convert them all at once.

Converted times
You enteredMilitary12-hour

Military time

1545

3:45 PM is 1545 in military time, said “fifteen forty-five hours”.

Military time
1545
24-hour clock
15:45
12-hour clock
3:45 PM
Said as
fifteen forty-five hours
Part of the day
Afternoon

Fix the highlighted field to update the result.

How to use

  1. Type a time in either format, such as 3:45 PM or 1545.
  2. The result shows it the other way round, with the 24-hour clock and how it is said.
  3. To convert many times at once, open Convert a list of times and paste one per line.

How military time conversion works

  • 12-hour to military: for 1 PM to 11 PM, add 12 to the hour. Then drop the colon and the AM or PM, keeping 4 digits. 7:05 AM is 0705 and 3:45 PM is 1545.
  • Military to 12-hour: from 1300 on, subtract 12 and add PM, so 1900 is 7:00 PM. Times from 0100 to 1159 are AM.
  • Noon and midnight: 12:00 PM is 1200 and 12:00 AM is 0000.
  • Saying it: read the hour, then “hundred” on the hour or the minutes otherwise. Many people add “hours” at the end.

Examples

You have Military time Said as
7:05 AM 0705 zero seven zero five hours
12:30 PM 1230 twelve thirty hours
3:45 PM 1545 fifteen forty-five hours
9:15 PM 2115 twenty-one fifteen hours
12:01 AM 0001 zero zero zero one hours

Going the other way: 1700 is 5:00 PM, 2359 is 11:59 PM and 0030 is 12:30 AM.

Military time chart

12-hour clock Military time Said as
12:00 AM (midnight) 0000 zero hundred hours
1:00 AM 0100 zero one hundred hours
2:00 AM 0200 zero two hundred hours
3:00 AM 0300 zero three hundred hours
4:00 AM 0400 zero four hundred hours
5:00 AM 0500 zero five hundred hours
6:00 AM 0600 zero six hundred hours
7:00 AM 0700 zero seven hundred hours
8:00 AM 0800 zero eight hundred hours
9:00 AM 0900 zero nine hundred hours
10:00 AM 1000 ten hundred hours
11:00 AM 1100 eleven hundred hours
12:00 PM (noon) 1200 twelve hundred hours
1:00 PM 1300 thirteen hundred hours
2:00 PM 1400 fourteen hundred hours
3:00 PM 1500 fifteen hundred hours
4:00 PM 1600 sixteen hundred hours
5:00 PM 1700 seventeen hundred hours
6:00 PM 1800 eighteen hundred hours
7:00 PM 1900 nineteen hundred hours
8:00 PM 2000 twenty hundred hours
9:00 PM 2100 twenty-one hundred hours
10:00 PM 2200 twenty-two hundred hours
11:00 PM 2300 twenty-three hundred hours
12:00 AM (end of day) 2400 twenty-four hundred hours
Midnight, noon and writing conventions
  • 0000 or 2400? NIST suggests 0000 for midnight at the start of a day and 2400 for midnight at its end. A shift ending at 2400 on Friday ends at the same moment as 0000 on Saturday.
  • 12 AM and 12 PM are ambiguous, says NIST, because noon is neither before nor after noon. US government style uses 12 p.m. for noon and 12 a.m. for midnight. Adding “noon” or “midnight” removes any doubt.
  • No colon: the US Government Publishing Office writes military time as four digits, such as 0025 or 2359. Everyday 24-hour clocks usually add a colon: 15:45.
  • Spoken forms vary. Saying “hours” at the end is common but optional, so “zero six hundred” and “zero six hundred hours” mean the same.

To add or subtract hours and minutes, use the time calculator. The sunrise and sunset calculator can show its times on a 24-hour clock.

Frequently asked questions

What is 1500 in military time?

1500 is 3:00 PM. For any hour of 13 or more, subtract 12 and add PM, so 1500 becomes 3:00 PM and 2115 becomes 9:15 PM.

How do I convert PM times to military time?

Add 12 to the hour and remove the colon. 3:45 PM becomes 1545 and 9:15 PM becomes 2115. Noon is the exception: 12:30 PM is 1230.

Is midnight 0000 or 2400?

Both are used. 0000 is midnight at the start of a day and 2400 is midnight at its end, so 2400 on Monday is the same moment as 0000 on Tuesday.

How do you say military time out loud?

Say the hour, then “hundred” on the hour or the minutes otherwise, often followed by “hours”. 0600 is “zero six hundred hours” and 1545 is “fifteen forty-five hours”.

Is 12 PM noon or midnight?

12 PM is noon (1200) and 12 AM is midnight (0000). NIST calls both labels ambiguous, so “12 noon” or the military time is clearer.

Does military time use a colon?

No. Military time is four digits with no colon, such as 0025 or 2359, in US government style. Everyday 24-hour clocks often add one: 15:45.

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