Voltti
Free tool

Military time converter
both ways.

Type a time like 3:30 PM or 1530. Get the military time, the 12-hour time and how to say it out loud. No signup.

Works with 1530, 15:30, 3:30pm or 0930.

Military-no colon
12-hour-AM and PM
24-hour-with a colon
How to say it-Military time is read out in hours.
Stop guessing

Know where your hours went, not just what time it is.

A schedule tells you when a shift starts. If you work on a computer, Voltti counts the real minutes you spend in each app on Mac and Windows, with no timer to start or stop. Daily and weekly reports show where the time went, and Focus sessions show a banner that calls you back when you drift.

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Free · macOS 13 or later · Windows 10 and 11

How it works

How to convert to military time.

  1. Morning (AM) times stay the same. Drop the colon and add a leading zero if needed. 9:30 AM is 0930.
  2. Afternoon and evening (PM) times add 12. 3:30 PM becomes 15 + 30, so 1530. 11:00 PM is 2300.
  3. Noon and midnight are the exceptions. 12:00 PM (noon) is 1200. 12:00 AM (midnight) is 0000, and 12:30 AM is 0030.
  4. Going back, subtract 12. If the military hour is 13 or more, take away 12 and add PM. 1845 is 6:45 PM. Hours 01 to 11 are AM, 12 is PM, and 00 is the 12 AM hour.

Example: a shift starts at 1530 and ends at 2345. 1530 minus 12 hours is 3:30 PM. 2345 minus 12 hours is 11:45 PM. Out loud, you say "fifteen thirty hours" and "twenty-three forty-five hours".

0000 or 2400? Both mean midnight. 0000 is the start of a day and is what most schedules use. 2400 marks the end of a day, so 2400 on Monday is the same moment as 0000 on Tuesday. To find how long a shift lasts, use the time duration calculator, or add up a full week in the work hours calculator.

Reference

Military time chart.

Every hour of the day in 12-hour time and military time.

12-hourMilitarySaid as
12:00 AM (midnight)0000Zero hundred hours
1:00 AM0100Zero one hundred hours
2:00 AM0200Zero two hundred hours
3:00 AM0300Zero three hundred hours
4:00 AM0400Zero four hundred hours
5:00 AM0500Zero five hundred hours
6:00 AM0600Zero six hundred hours
7:00 AM0700Zero seven hundred hours
8:00 AM0800Zero eight hundred hours
9:00 AM0900Zero nine hundred hours
10:00 AM1000Ten hundred hours
11:00 AM1100Eleven hundred hours
12:00 PM (noon)1200Twelve hundred hours
1:00 PM1300Thirteen hundred hours
2:00 PM1400Fourteen hundred hours
3:00 PM1500Fifteen hundred hours
4:00 PM1600Sixteen hundred hours
5:00 PM1700Seventeen hundred hours
6:00 PM1800Eighteen hundred hours
7:00 PM1900Nineteen hundred hours
8:00 PM2000Twenty hundred hours
9:00 PM2100Twenty-one hundred hours
10:00 PM2200Twenty-two hundred hours
11:00 PM2300Twenty-three hundred hours
FAQ

Military time, answered.

What is military time?

Military time is a 24-hour clock written with four digits and no colon. The day runs from 0000 (midnight) to 2359 (one minute before the next midnight), so there is no need for AM or PM.

How do I convert PM to military time?

Add 12 to the hour, except for 12 PM, which stays 1200. 4:15 PM is 1615 and 9:00 PM is 2100.

What is 12 AM and 12 PM in military time?

12 AM is midnight, written 0000. 12 PM is noon, written 1200. So 12:45 AM is 0045 and 12:45 PM is 1245.

Is midnight 0000 or 2400?

Both are used. 0000 is midnight at the start of a day, and most schedules use it. 2400 is midnight at the end of a day, the same moment as 0000 the next day. Times after 2400, like 2401, are not used. The next minute is 0001.

How do you say military time out loud?

Say the hour, then the minutes, then "hours". 1530 is "fifteen thirty hours". On the hour you say "hundred", so 0700 is "zero seven hundred hours". A leading zero is said as "zero", so 0915 is "zero nine fifteen hours".

Is military time the same as 24-hour time?

It is the same clock. 24-hour time is often written with a colon, like 15:30, while military time drops the colon and is written 1530.

Is my data saved anywhere?

The last time you typed stays in your browser so it's still there when you come back. Nothing is sent to a server.

Is there a way to track my hours automatically?

If you work on a computer, yes. Voltti for Mac and Voltti for Windows record every real minute in your apps and work websites, with no timer to start or stop. The free plan includes automatic tracking.