Military Time Converter

Standard to military time conversion

Use the Standard → Military tab. Select AM or PM, enter the hour (1–12) and minute (0–59), then click Convert. The formula is:

AM: military hour = hour (12 AM → 00)

PM: military hour = hour + 12 (12 PM → 12, 1 PM → 13, …, 11 PM → 23)

Example: 3:45 PM → 3 + 12 = 15, military time = 1545. The minute digits (45) are written directly — no conversion needed.

Military to standard time conversion

Use the Military → Standard tab. Enter the 4-digit military code with no colon — for example, 1730 or 0600 — and click Convert. The rules are:

• 0000 = 12:00 AM (midnight)
• 0001–1159 = AM (subtract nothing; 0800 = 8:00 AM)
• 1200 = 12:00 PM (noon)
• 1201–2359 = PM (subtract 12; 1730 = 5:30 PM)

24-hour time to standard time conversion

Use the 24-Hour → Standard tab. Enter the hour (0–23) and minute (0–59). The conversion is the same as military-to-standard except the input uses a colon-separated hour and minute instead of a 4-digit code. This mode is useful when copying a time from a digital system that displays 24-hour time with a colon.

Special cases: 0000, 1200, and 2400

Three times cause the most confusion:

• 0000— midnight, the start of a new day. Equivalent to 12:00 AM. Pronounced “zero hundred.”
• 1200 — noon, 12:00 PM. Not midnight. The noon hour in military time is 1200 through 1259.
• 2400 — not accepted by this converter. Some schedules use it informally to mean the end of the day — the same instant as 0000 on the next day. For clear time conversion, use 0000 for midnight and 2359 for one minute before midnight.

24-hour time vs. military time — what is the difference?

The underlying time values are identical. The difference is formatting:

• 24-hour time uses a colon: 14:30, 07:05
• Military time omits the colon and always uses four digits: 1430, 0705

Military time is also spoken differently. 1430 is “fourteen thirty” or “fourteen hundred thirty,” not “two thirty PM.” On-the-hour times are pronounced with “hundred” — 0800 is “zero eight hundred,” 1500 is “fifteen hundred.”

Where military time is used

• Armed forces — the original and most well-known use case; orders and schedules use 24-hour time to eliminate AM/PM confusion across time zones
• Aviation and air traffic control — Zulu (UTC) time is always expressed in 24-hour format
• Healthcare and hospitals — medication schedules, shift changes, and patient records use military time to prevent dosing errors
• Emergency services — police, fire, and EMS dispatch logs use 24-hour time for legal and operational clarity
• Logistics and shipping — international freight schedules often use 24-hour time to avoid AM/PM ambiguity across time zones

Military time chart — all 24 hours

Full reference table from midnight (0000) to 11 PM (2300).

How this differs from related calculators

Decimal Hour Calculator — converts between hours and minutes, decimal hours, and total minutes. Use it for payroll, billing, and timesheet decimal conversion. The Military Time Converter handles clock format conversion only — it does not calculate durations or decimal values.

Time Duration Calculator — calculates elapsed time between two specific clock times, including cross-midnight and optional break deduction. Use it when you need to know how long a period lasted (e.g., shift length). The Military Time Converter converts a single time point between formats — it does not subtract or calculate elapsed time.

Hours Calculator — calculates elapsed hours between clock start and end times with break deduction. Use it for shift hour calculations. The Military Time Converter is a format converter only.

Time Addition Calculator — adds or subtracts multiple time rows with full HH:MM:SS input per row. Use it when you need to sum several durations. The Military Time Converter does not perform duration arithmetic.

Hours and Minutes Calculator — supports duration arithmetic (add and subtract two H:M values) plus conversion between hours and minutes. Use it when you need to add or subtract two time durations. The Military Time Converter converts a single time point between clock formats.