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🕐 Military Time 🆓 Free Live 24h Clock

🕐 Military Time Converter

Convert any time between 12-hour AM/PM and 24-hour military format instantly. See the live military clock showing the current time in 24-hour format, look up any hour in the complete 0000–2359 reference chart, and check military time across all major world time zones. Includes Zulu time and NATO phonetic time zone codes.

Live Military Clock
0000
12:00:00 AM
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12-Hour Military Time

Quick Examples

Military Time 12-Hour

Enter 4 digits between 0000 and 2359
Quick Examples - click to convert

Complete Military Time Chart (0000–2359)

Current Military Time by Time Zone

Live military time in major time zones - updates every second.

Zone Name Code UTC Offset Military Time

📖 Military Time Zone Letter Codes

LetterZone NameUTC OffsetUsed By

Frequently Asked Questions

Military time (24-hour time) runs from 0000 (midnight) to 2359 (11:59 PM) without repeating. Standard 12-hour time uses AM and PM - the same hour appears twice per day. Military time eliminates this ambiguity: 0100 is always 1:00 AM, 1300 is always 1:00 PM. There is no confusion possible. It is used by the military, aviation, hospitals, emergency services, railways, and officially in most countries outside the US.
Add 12 to the hour. 1:00 PM → 1+12 = 13 → 1300. 6:30 PM → 6+12 = 18 → 1830. 11:45 PM → 11+12 = 23 → 2345. Exceptions: 12:00 PM (noon) stays 1200. 12:30 PM = 1230. For AM times: keep the same digits with a leading zero. 6:00 AM = 0600. 11:30 AM = 1130. Midnight (12:00 AM) = 0000. Reverse conversion (military to 12-hour): for numbers 1300+, subtract 12 and add PM. 1800 − 12 = 6:00 PM.
Spoken as four digits with 'hundred' for exact hours. 0800 = 'zero eight hundred hours'. 1200 = 'twelve hundred hours'. 1430 = 'fourteen thirty hours'. 0015 = 'zero zero fifteen hours'. In NATO/military contexts, time zone letters are appended: '1400Z' (1400 Zulu = UTC), '0800R' (0800 Romeo = US Eastern Standard). Never say 'fourteen hundred and thirty' - just 'fourteen thirty.' The word 'hours' is sometimes dropped in informal usage.
Zulu time (Z) is the military name for UTC - Coordinated Universal Time at 0° longitude, with no daylight saving adjustment. Called 'Zulu' because Z is the NATO phonetic alphabet code for the UTC time zone. Military operations across multiple time zones use Zulu time to prevent confusion: '0600Z' means 06:00 UTC everywhere. Aviation flight plans, weather reports, and international military communications all use Zulu. IST = UTC+5:30, so 1200Z = 1730 IST.
No - the military, NATO, and all official contexts using 24-hour time never use AM/PM. The 24-hour format makes AM/PM completely unnecessary. 0700 is unambiguously morning; 1900 is unambiguously evening. The colon is also typically omitted in military notation: civilian 14:30 becomes military 1430. Some countries (India railways, European timetables) use civil 24-hour notation with the colon (14:30) while military contexts drop it (1430).
Most of the world uses 24-hour time in official and transport contexts: India (railways timetables, defence, aviation, hospital records), all EU countries, most of Asia, Africa, South America, and Oceania. The 12-hour AM/PM format is primarily in everyday speech in the US, Canada, UK, and Philippines - but even these countries use 24-hour time for aviation (ICAO requirement), military, medical, and scheduling. ISO 8601 (international standard) specifies 24-hour time (HH:MM:SS) for unambiguous datetime.
NATO assigns a letter to each UTC offset from Y (UTC-12) to M (UTC+12), skipping J (local time designation). Key codes: Z = Zulu = UTC+0 (universal reference). A = Alpha = UTC+1. B = Bravo = UTC+2. F = Foxtrot = UTC+6. I = India = UTC+9. R = Romeo = UTC-5 (US Eastern Standard). S = Sierra = UTC-6 (US Central Standard). U = Uniform = UTC-8 (US Pacific Standard). Military communications append the zone: '0900R' = 09:00 Eastern Standard Time. '1400Z' = 14:00 UTC.
Hospitals worldwide use 24-hour time to prevent medication errors. 6:00 AM and 6:00 PM medications are critical - a single AM/PM misread is dangerous. Medical charts, prescription orders, and nursing handovers use 24-hour time exclusively. In India, hospital records follow 24-hour notation per government health guidelines. Examples: morning rounds at 0800, afternoon medications at 1400, night shift at 2000. The unambiguous format is a direct patient safety requirement in healthcare.

🕐 Live Military Time

Your Time0000
UTC / Zulu0000Z
IST-
EST-
PST-

Quick Reference

Midnight0000
Noon1200
6:00 AM0600
6:00 PM1800
11:59 PM2359

Related

World Clock 🕐 Time Zone Calc ⏱️ Time Span Days Until

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Military Time Converter - 24-Hour Clock Guide, Conversion Rules & Quick Reference

Military time (the 24-hour clock) eliminates one of the most common sources of scheduling confusion: the AM/PM ambiguity. A 12-hour clock shows 6:00 twice per day; a 24-hour clock shows every hour exactly once. That's why every industry where precision matters - aviation, medicine, military operations, railways, and international business - uses 24-hour time as the standard.

The one-rule conversion: For PM times, add 12 to the hour. 3:00 PM = 3+12 = 15 = 1500. 9:45 PM = 9+12 = 21 = 2145. For AM times, keep the same digits - just add a leading zero if needed: 8:30 AM = 0830. Special cases: midnight = 0000, noon = 1200.

Complete AM to Military Time Reference

AM Hours (Midnight to Noon)

  • 12:00 AM (midnight) = 0000
  • 1:00 AM = 0100
  • 2:00 AM = 0200
  • 3:00 AM = 0300
  • 4:00 AM = 0400
  • 5:00 AM = 0500
  • 6:00 AM = 0600
  • 7:00 AM = 0700
  • 8:00 AM = 0800
  • 9:00 AM = 0900
  • 10:00 AM = 1000
  • 11:00 AM = 1100
  • 12:00 PM (noon) = 1200

PM Hours (Noon to Midnight)

  • 1:00 PM = 1300
  • 2:00 PM = 1400
  • 3:00 PM = 1500
  • 4:00 PM = 1600
  • 5:00 PM = 1700
  • 6:00 PM = 1800
  • 7:00 PM = 1900
  • 8:00 PM = 2000
  • 9:00 PM = 2100
  • 10:00 PM = 2200
  • 11:00 PM = 2300
  • 11:59 PM = 2359

How to Pronounce Military Time

Military time is read differently from regular clock time - the hours and minutes are spoken as a single group, with "hundred" used for exact hours:

  • 0800 "zero eight hundred hours"
  • 0830 "zero eight thirty hours"
  • 1200 "twelve hundred hours"
  • 1430 "fourteen thirty hours"
  • 2145 "twenty-one forty-five hours"
  • 0015 "zero zero fifteen hours"

In NATO/military contexts, a time zone letter is often appended: "1400Z" means 1400 Zulu (UTC). "0800R" means 0800 Romeo (US Eastern Standard Time). The word "hours" is sometimes omitted in informal military communication.

Zulu Time and NATO Time Zone Codes

When military operations span multiple time zones, Zulu time (Z) - which means UTC - is used as the universal reference to prevent confusion. "The operation begins at 0600Z" means 06:00 UTC regardless of where each unit is located. Key NATO time zone letters:

  • Z (Zulu) - UTC+0. The universal military reference.
  • A (Alpha) - UTC+1 (Central Europe Standard)
  • B (Bravo) - UTC+2 (Eastern Europe Standard)
  • E (Echo) - UTC+5 (Pakistan)
  • F (Foxtrot) - UTC+6
  • I (India) - UTC+9 (Japan, Korea)
  • R (Romeo) - UTC-5 (US Eastern Standard)
  • S (Sierra) - UTC-6 (US Central Standard)
  • U (Uniform) - UTC-8 (US Pacific Standard)

Note: IST (India Standard Time) is UTC+5:30 - there is no single NATO letter for this exact offset since IST uses a half-hour offset. Military operations in India typically reference UTC+5:30 explicitly.

How this calculator works, and where the numbers come from

The Military Time Converter applies the standard formula for this calculation to the values you enter and updates the result as you type. The calculation itself happens in your browser, and the page explains the method so you can check any result by hand.

Please note: Results are provided for general information and are calculated from the values you enter.

Sources and further reading

Last reviewed: by the CalcQube Editorial Team. See our editorial policy for how we build and check calculators, or report an error.