Military Time Converter: Standard Time to 24-Hour Time and Back
Type a time like 3:45 pm to get 1545, or paste a military time to read it as a.m. or p.m., with midnight and noon spelled out and a table of every hour.
Military time counts the hours of the day from 00 to 23 and writes them as four digits with no colon. Morning hours keep their number, so 9:30 a.m. is 0930. For an afternoon or evening time, add 12 to the hour: 3:45 p.m. is 1545 and 11 p.m. is 2300. Midnight at the start of the day is 0000 and noon is 1200.
This converter rewrites times between the 12-hour and 24-hour clocks in your browser. It does not change time zones or account for daylight saving time. Where a time sets a deadline, such as a contract, a dose schedule or a flight, confirm the exact time and date with whoever issued it, especially around midnight.
Military time
1545
Written with a colon: 15:45
Every hour of the day
| Military | Standard |
|---|---|
| 0000 | 12:00 a.m. |
| 0100 | 1:00 a.m. |
| 0200 | 2:00 a.m. |
| 0300 | 3:00 a.m. |
| 0400 | 4:00 a.m. |
| 0500 | 5:00 a.m. |
| 0600 | 6:00 a.m. |
| 0700 | 7:00 a.m. |
| 0800 | 8:00 a.m. |
| 0900 | 9:00 a.m. |
| 1000 | 10:00 a.m. |
| 1100 | 11:00 a.m. |
| 1200 | 12:00 p.m. |
| 1300 | 1:00 p.m. |
| 1400 | 2:00 p.m. |
| 1500 | 3:00 p.m. |
| 1600 | 4:00 p.m. |
| 1700 | 5:00 p.m. |
| 1800 | 6:00 p.m. |
| 1900 | 7:00 p.m. |
| 2000 | 8:00 p.m. |
| 2100 | 9:00 p.m. |
| 2200 | 10:00 p.m. |
| 2300 | 11:00 p.m. |
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About the Military Time Converter
Military time is the 24-hour clock written the way the armed forces, hospitals and emergency services usually write it: four digits, hours then minutes, no colon and no a.m. or p.m. The day starts at 0000, reaches noon at 1200 and ends at 2359, one minute before the next midnight. NIST, the U.S. agency that keeps official time, numbers the hours the same way. To convert a standard time, keep the hour for 1 a.m. to 11 a.m. (8 a.m. is 0800) and add 12 for 1 p.m. to 11 p.m. (6 p.m. is 1800). The hour of 12 is the one to watch. NIST calls 12 a.m. and 12 p.m. ambiguous, so this page uses the everyday reading and labels the result: 12:00 a.m. becomes 0000, labelled midnight, and 12:00 p.m. becomes 1200, labelled noon. Going the other way, it accepts 1545, 15:45, 945, or a time followed by hours or hrs, such as 1800 hours, and reads 2400 as midnight at the end of a day, the form NIST uses to close a date. The table under the converter lists every hour.
Frequently asked questions
Is midnight 0000 or 2400?+
Both are used, and they mean different ends of the day. NIST suggests 0000 for midnight at the beginning of a date and 2400 for midnight at its end, so a shift that runs until midnight on Monday ends at 2400 Monday, the same instant as 0000 Tuesday. The converter shows 0000 for 12:00 a.m. and reads 2400 as the end of the day. The minute after 2359 is 0000, never 2401.
How do I convert 12:30 a.m. to military time?+
The 12 o'clock hour after midnight becomes 00, so 12:30 a.m. is 0030, half an hour into the day. 12:30 p.m. is just after noon, so it stays 1230. If you see a time like 12:15 a.m. on a ticket or a contract, the everyday reading is the one this page uses, but it is worth confirming, since NIST calls 12 a.m. and 12 p.m. ambiguous and advises against using them.
How do I read a military time out loud?+
Most people say the four digits as two pairs, so 1545 is fifteen forty-five and 0930 is zero nine thirty or oh nine thirty. Whole hours are often said as hundred, as in eighteen hundred for 1800. Some services add the word hours at the end. The converter accepts 1800 hours or 0600 hrs as typed.
Does military time change for time zones or daylight saving time?+
No. Converting between the 12-hour and 24-hour forms only changes how a time is written, not which time it is. 1545 in New York is still 3:45 p.m. in New York. To move a time between zones, use a time zone converter after you have the 24-hour form.
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