Military Time Converter

You pick a direction, type the time, and it converts. Going from standard to military, it keeps the hour for the morning, adds 12 for afternoon and evening, and turns midnight into 0000 and noon into 1200. Going the other way, it splits the four digits into hours and minutes and adds AM or PM. The full chart below lists every hour both ways, and it all loads instantly in the page, so you'll see the answer the instant you type.

Military time, also called the 24-hour clock, counts the hours from 00 at midnight through 23, so there's no AM or PM and no repeating numbers. The day starts at 0000, noon is 1200, and the last minute is 2359. It's used by the military, hospitals, aviation, and much of the world for everyday time, because a single number for each hour removes any mix-up between morning and night.

For 1 PM through 11 PM, add 12 to the hour, so 3 PM becomes 1500 and 9 PM becomes 2100. Noon, 12 PM, stays 1200 since it's already past the morning, and the minutes never change. For AM times, the hour stays the same, except 12 AM (midnight) becomes 0000. This tool does the add-12 step for you and pads the digits, so 3:05 PM comes out as 1505.

The 24-hour day runs from 0000 up to 2359, so the clock rolls back to 0000 at midnight to start the new day, rather than reaching 2400. You'll sometimes see 2400 used to mean the end of a day on schedules, but the standard start-of-day form is 0000. This converter uses 0000 for midnight, which lines up with how phones, computers, and most timetables show it.

No, only the hour shifts; the minutes stay exactly the same in both directions. So 7:45 AM is 0745, and 7:45 PM is 1945, with the 45 untouched. That's what makes the conversion quick once you know the hour rule: morning hours keep their number, afternoon and evening hours add 12, and you just write the minutes straight across. The chart shows the on-the-hour values, and any minutes ride along.

0700 is 7:00 AM. For any morning value from 0100 to 0959, you just read the first two digits as the hour, so 0800 is 8:00 AM and 1000 is 10:00 AM, with the minutes carried straight across. It stays that way right up to 1159, which is 11:59 AM. From 1200 onward you're into the afternoon, so 1300 is 1:00 PM. Type any four-digit value into the tool above and it names the standard time and the AM or PM for you.

1800 is 6:00 PM. Once a military time is 1300 or higher, you subtract 12 from the hour to get the 12-hour clock, so 1800 minus 12 is 6, and it lands in the PM. The same rule gives you 1900 as 7:00 PM, 2000 as 8:00 PM, and 2100 as 9:00 PM, while the minutes stay put. So 1830 is 6:30 PM. The chart below lists every hour, and the tool handles the subtract-12 step so you don't have to.

10 PM is 2200. For any PM hour from 1 to 11, you add 12, so 10 plus 12 is 22, written as 2200 with no colon. That makes 8 PM into 2000 and 11 PM into 2300. The minutes stay the same, so 10:15 PM is 2215. Noon is the one exception, since 12 PM already stays 1200, and midnight, 12 AM, becomes 0000. Switch the direction to standard-to-military above, enter the hour, and it adds the 12 automatically.

Yes, it's completely free, with no sign-up, and it runs right in your browser, so nothing you type leaves your device. Convert either direction, copy the result, and use the chart as a quick reference. Bookmark it for work schedules, travel, the hospital, or learning the 24-hour clock, and you'll have an accurate conversion and a full chart ready whenever you need them.