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Military Time Chart — 24 Hour Clock Conversion

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Military time, also known as the 24-hour clock, is used by armed forces, emergency services, hospitals, and airlines worldwide. It eliminates the AM/PM ambiguity that can lead to costly mistakes. This guide provides a complete conversion chart and explains how to read and convert military time.

Complete Military Time Chart

12-HourMilitary12-HourMilitary -------------------------------------- 12:00 AM000012:00 PM1200 1:00 AM01001:00 PM1300 2:00 AM02002:00 PM1400 3:00 AM03003:00 PM1500 4:00 AM04004:00 PM1600 5:00 AM05005:00 PM1700 6:00 AM06006:00 PM1800 7:00 AM07007:00 PM1900 8:00 AM08008:00 PM2000 9:00 AM09009:00 PM2100 10:00 AM100010:00 PM2200 11:00 AM110011:00 PM2300

How to Convert

12-Hour to Military Time

  • AM times: Simply remove the colon and AM. Add a leading zero if needed.

    • - 7:30 AM → 0730

    - 10:15 AM → 1015

  • PM times: Add 12 to the hour, then remove the colon and PM.

    • - 3:45 PM → 1545 (3 + 12 = 15)

    - 11:30 PM → 2330

    Military to 12-Hour

  • 0000–1159: Add colon and AM (prepend 12 for 0000)

    • - 0730 → 7:30 AM

    - 0000 → 12:00 AM

  • 1200–2359: Subtract 12 from the first two digits and add PM (keep 12 for noon)

    • - 1545 → 3:45 PM

    - 1200 → 12:00 PM

    How to Say Military Time

    Military time is spoken digit by digit:

  • 0800 = "zero eight hundred" or "oh eight hundred"
  • 1300 = "thirteen hundred"
  • 1545 = "fifteen forty-five"
  • 0000 = "zero hundred hours" or "midnight"
  • 1200 = "twelve hundred hours" or "noon"

    • Where Military Time Is Used

  • Military: All branches of armed forces worldwide
  • Aviation: Flight schedules, ATC communications
  • Healthcare: Hospital shifts, medication schedules
  • Emergency Services: Police, fire, EMS dispatch
  • International Business: Many countries use 24-hour time as standard
  • Computing: Log files, cron jobs, system timestamps

    • Why Use Military Time?

  • No AM/PM confusion. 0700 and 1900 are unmistakably different. 7:00 could be either.
  • International standard. Most of the world uses 24-hour time in daily life.
  • Sorts correctly. In chronological order, 0800 comes before 1400, but 8:00 AM and 2:00 PM can confuse sorting algorithms.
  • Precision matters. In medical and military contexts, a 12-hour mix-up can be catastrophic.

    • Quick Mental Math Trick

    For PM times, just add 12 to the hour. For converting back from military time greater than 1200, subtract 12. That's it.

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