Military Time Conversion Table

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Military time conversion table

Minutes stay the same in both systems: 0715 is 7:15 AM and 1945 is 7:45 PM. The tool’s table can also list every 15 or 30 minutes.

How to convert

The two tricky times are noon and midnight: 12:00 PM (noon) is 1200 and 12:00 AM (midnight) is 0000.

How military time is spoken

• 0600 — “zero six hundred” (or “oh six hundred”).
• 1500 — “fifteen hundred hours”.
• 1530 — “fifteen thirty”.
• 0945 — “zero nine forty-five”.
• 0000 — “zero hundred” or “midnight”.

“Hours” is often added in formal military speech. Colons are usually left out when writing military time, while many civilian 24-hour clocks write 15:30.

Worked example: a night shift

A nurse works from 2200 to 0630. Converting: 2200 is 10:00 PM and 0630 is 6:30 AM. Because the end time is earlier than the start, the shift crosses midnight: add 24 hours to the end (0630 becomes 3030), subtract 2200, and get 8 hours 30 minutes. With a 30-minute unpaid break, that is 8 hours paid. The duration calculator above does this automatically.

Zulu time and time zones

Military and aviation schedules often use Coordinated Universal Time (UTC), called Zulu time in the military, to avoid confusion across time zones. It is written with a Z: 1400Z is 14:00 UTC. Local times use other letters for each zone; the US Eastern time zone is Romeo (R) in standard time. To convert Zulu to local, add or subtract your offset from UTC — for example, 1400Z is 0900 in US Eastern Standard Time (UTC−5).

Where 24-hour time is used

• Armed forces and emergency services.
• Hospitals and nursing — medication times, charting.
• Aviation, shipping and railways.
• Computing and logs (often in UTC).
• Everyday life in most of Europe, Asia, Latin America and many other regions.

Common conversion mistakes

Quick mental conversion

For afternoon and evening times, subtract 12 in your head: 1745 minus 12 hours is 5:45 PM. Or remember the pattern that 1300 is 1 PM, 1400 is 2 PM and so on — the second digit is two less than the PM hour. For morning times, the military time is the same as the clock, just with a leading zero: 0915 is 9:15 AM. The only exceptions are the midnight hour (00xx, which is 12xx AM) and the noon hour (12xx, which is PM).

Military time in schedules and forms

• Write four digits with no colon for a military style (0730), or with a colon for international 24-hour style (07:30).
• For time ranges, use a dash: 0800–1630.
• For events crossing midnight, add the date to both times to avoid ambiguity.
• State the time zone when people are in different places, or use UTC (Z).

Why 24-hour time avoids mistakes

In 12-hour time, “8:00” could mean morning or evening, and AM/PM is easy to miss when writing quickly. A 24-hour time is unique: 0800 and 2000 can’t be confused. That’s why settings where mistakes are costly — medicine, transport and operations — use it. In medical charting, writing times as four digits also avoids misreading.

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