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Military Time Converter

Convert between 12-hour AM/PM and 24-hour military time with phonetic military pronunciation and Zulu time reference.

Quick Time Examples:
Military Time (24-Hour)
1445 hours

Pronounced: “14 hundred 45 hours”

Standard 12-Hour

2:45 PM

AM / PM
24-Hour Coloned

14:45

HH:MM
🎓

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What Is a Military Time Converter?

A military time converter translates standard 12-hour clock notation (with AM and PM) into 24-hour military notation (from 0000 to 2359 hours) and vice-versa. Used worldwide by armed forces, aviation, emergency services, hospitals, and transportation to eliminate ambiguity.

How to Use This Calculator

  1. Enter any standard time (e.g. "02:45 PM") or military time (e.g. "1445" or "14:45").
  2. Instantly view the military 4-digit code, phonetic military pronunciation, and 12-hour format.

12-Hour to 24-Hour Conversion Rule

T_{24} = \begin{cases} H \pmod{12} & \text{if AM} \\ (H \pmod{12}) + 12 & \text{if PM} \end{cases}

12:00 AM converts to 0000 hours, morning hours 1:00 AM–11:59 AM stay 0100–1159, 12:00 PM is 1200, and afternoon hours add 12 (1:00 PM becomes 1300).

Worked Example

Scenario: Convert 06:30 PM and 12:15 AM into military time.

06:30 PM: Add 12 to the hour: 6 + 12 = 18. Output: 1830 hours ("Eighteen Thirty Hours").

12:15 AM: Midnight hour resets to 00. Output: 0015 hours ("Zero Zero Fifteen Hours").

Result: 06:30 PM is 1830 hours; 12:15 AM is 0015 hours.

Tips & Key Notes

  • Military time does not use colons in strict military documentation (1430 instead of 14:30).
  • Midnight can be written as 0000 (start of day) or 2400 (end of day).
  • Aviation and maritime operations frequently append "Z" (Zulu time) to indicate Coordinated Universal Time (UTC).

Frequently Asked Questions

What is 10:00 PM in military time?

10:00 PM in military time is 2200 hours (pronounced "Twenty-Two Hundred Hours").

How do you say 0800 in military time?

0800 is pronounced "Zero Eight Hundred Hours".

Why do militaries and hospitals use 24-hour time?

The 24-hour system eliminates any possible confusion between AM and PM, preventing potentially fatal medication dosage errors or tactical miscommunications.

Is 12:00 AM 0000 or 2400?

0000 refers to midnight at the start of a day, while 2400 refers to midnight at the conclusion of a day.

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