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PPT RangerPowerPoint Ranger, explained

Military Time Converter and 24-Hour Time Chart

Military time is the 24-hour clock: the day runs from 0000 to 2359 with no AM or PM. To convert a PM time, add 12 to the hour, so 6:30 PM is 1830; for AM times keep the hour and add a leading zero, so 7:45 AM is 0745. Zulu time is UTC. Use the converter below for any time, or the chart for each hour.

Military time converter

Runs in your browser. Nothing is sent or stored. The chart at the bottom of this tool works without JavaScript.

12-hour to 24-hour

Choose Convert.

24-hour to 12-hour

Choose Convert.

Local time to Zulu (UTC), and back

Offsets are standard time. In daylight saving time add 1 hour to the offset (for example UTC-4 instead of UTC-5). Pick the offset your clock is actually on.

Choose Convert.

24-hour clock chart

On the hour, 12-hour clock to 24-hour clock and how an FAA controller says it
12-hour24-hourSaid digit by digit
12:00 AM0000ZERO ZERO ZERO ZERO
1:00 AM0100ZERO ONE ZERO ZERO
2:00 AM0200ZERO TWO ZERO ZERO
3:00 AM0300ZERO THREE ZERO ZERO
4:00 AM0400ZERO FOUR ZERO ZERO
5:00 AM0500ZERO FIVE ZERO ZERO
6:00 AM0600ZERO SIX ZERO ZERO
7:00 AM0700ZERO SEVEN ZERO ZERO
8:00 AM0800ZERO EIGHT ZERO ZERO
9:00 AM0900ZERO NINE ZERO ZERO
10:00 AM1000ONE ZERO ZERO ZERO
11:00 AM1100ONE ONE ZERO ZERO
12:00 PM1200ONE TWO ZERO ZERO
1:00 PM1300ONE THREE ZERO ZERO
2:00 PM1400ONE FOUR ZERO ZERO
3:00 PM1500ONE FIVE ZERO ZERO
4:00 PM1600ONE SIX ZERO ZERO
5:00 PM1700ONE SEVEN ZERO ZERO
6:00 PM1800ONE EIGHT ZERO ZERO
7:00 PM1900ONE NINE ZERO ZERO
8:00 PM2000TWO ZERO ZERO ZERO
9:00 PM2100TWO ONE ZERO ZERO
10:00 PM2200TWO TWO ZERO ZERO
11:00 PM2300TWO THREE ZERO ZERO

Chart checked against DVIDS / Joint Base McGuire-Dix-Lakehurst, Military time simplified (17 Jan 2013) and the FAA phraseology rule for saying times, read 2026-11-14.

Part of our guide: Uncover the Fascinating World of Army Slang

Military time is the 24-hour clock, and soldiers use it for everything from formation times to radio calls. If the lingo around it is new, start with our Army slang A to Z, then use the converters on this page. PPT Ranger is an unofficial humor site; the converter is plain arithmetic and is not an Army product.

How 24-hour time works

The 24-hour clock counts hours from midnight, 00 to 23, followed by two digits of minutes. There is no AM or PM, which is why the military uses it: the Air Force article we checked says it avoids confusion between a.m. and p.m. hours.

  • AM hours (1 to 11): keep the hour, add a leading zero. 7:45 AM is 0745.
  • 12 AM (midnight): the hour becomes 00. 12:30 AM is 0030.
  • 12 PM (noon): stays 12. 12:30 PM is 1230.
  • PM hours (1 to 11): add 12. 1:05 PM is 1305.

Formulas: for a PM time, 24-hour hour = 12-hour hour + 12 (except 12 PM). Back again, for hours 13 to 23, 12-hour hour = 24-hour hour - 12.

Conversion chart

The chart sits under the converters above, one row per hour, with each time said digit by digit. A few anchor points: 0000 midnight, 0600 6 AM, 1200 noon, 1800 6 PM, 2359 one minute before midnight.

Saying the time (hundred hours)

FAA phraseology says the four separate digits of the hour and minutes: 0115 is ZERO ONE ONE FIVE. That is the radio-procedure standard cited in the key facts. In ordinary speech soldiers often say “oh seven hundred” for 0700 and “fourteen thirty” for 1430, and that is a convention that varies by unit, not a rule in the sources we opened. When a time could be misheard on a radio, say each digit.

Zulu time

Zulu is UTC, the single world reference time, and a Z after four digits marks it (1500Z). The tool converts in both directions with a fixed hour offset.

Formula: Zulu = local time - UTC offset. Local = Zulu + UTC offset. If the result passes 2359 it rolls to the next day; below 0000, to the previous day.

U.S. Eastern Standard Time is UTC-5, so 0900 local is 0900 - (-5) = 1400Z. In daylight saving time Eastern is UTC-4, so add one hour to the offset you pick.

Worked example

You are told “formation at 0630 local, report at 2130Z”, and you are on Central Standard Time, UTC-6.

  1. 0630 local is already 24-hour. In 12-hour time that is 6:30 AM.
  2. 2130Z is 2130 UTC. Local = Zulu + offset = 2130 + (-6 hours) = 1530, which is 3:30 PM.
  3. So the report time is 3:30 PM local, the same day. Type the numbers into the Zulu converter above to check.

Assumptions and limits

  • The converter takes whole-hour and half-hour offsets from UTC-12 to UTC+14 that you choose. It does not look up your time zone or daylight saving rules.
  • 2400 is rejected; use 0000 for midnight.
  • Times are four digits. Seconds are not handled.
  • Sources read 2026-11-14: DVIDS, FAA Order JO 7110.10EE and NIST. See the sources list below.

Frequently asked questions

What is 1800 hours in regular time?

1800 hours is 6:00 PM. For any time from 1300 to 2359, subtract 12 from the hour to get the 12-hour clock hour and call it PM, so 1800 minus 1200 is 0600, or 6:00 PM. Times from 0100 to 1159 keep the same hour and are AM, and 1200 is 12:00 PM, noon. Use the 24-hour to 12-hour converter above to check any time.

How do you convert PM times to military time?

Add 12 to the hour and keep the minutes. 1:05 PM becomes 1305, 6:30 PM becomes 1830 and 11:59 PM becomes 2359. The exception is 12 PM, which stays 1200. For AM times, keep the hour and add a leading zero if needed, so 7:45 AM is 0745. The one other exception is 12 AM, which is 0000.

What is Zulu time?

Zulu is the military and navigation word for Coordinated Universal Time (UTC), written with a Z after the time, such as 1500Z. NIST says it is a term sometimes used in the military, not an official time scale. Zulu is the radio word for the letter Z, which marks the time zone on the prime meridian. To get Zulu from local time, subtract your UTC offset.

Is midnight 2400 or 0000?

The Air Force chart we checked writes midnight as 0000, with the day running 0000 to 2359. Some sources and some units also write 2400 for the end of a day, and we did not find a regulation that settles it for every unit. For a start-of-day time, use 0000; this converter accepts 0000 and rejects 2400. Follow your unit's standard operating procedure if it differs.

How do you say 0745 in military time?

FAA radio phraseology says the four digits one at a time: ZERO SEVEN FOUR FIVE. In everyday speech people often say "oh seven forty-five", and "oh seven hundred" for 0700; that is common usage rather than a rule in the sources we checked, and it varies by unit. On a radio net, say each digit and add Zulu if it is UTC.

Sources

  1. DVIDS (Joint Base McGuire-Dix-Lakehurst), Military time simplified, 17 Jan 2013 (dvidshub.net)
  2. FAA Order JO 7110.10EE, chapter 2, section 3 (ICAO phonetics, number usage, time) (faa.gov)
  3. NIST, Time and Frequency from A to Z (entry: Zulu) (nist.gov)

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