Military Time Converter and Chart

The complete military time chart

The whole 24-hour clock on one printable table. Morning hours are nearly identical to the 12-hour clock; afternoon and evening hours are the 12-hour hour plus 12. Print this page and the chart travels with you.

The two-line conversion rule

Hours 00–11 are AM: drop any leading zero and add a colon — 0730 → 7:30 AM, 0000 → 12:00 AM (midnight). Hours 13–23 are PM: subtract 12 from the hour and keep the minutes untouched — 1845 → 6:45 PM, 1430 → 2:30 PM. And 1200 is the exception, not the rule: noon is 12:00 PM with no subtraction at all. That is the entire method — the converter above applies it to any time you type.

Output · formula · meaning

The midnight trap: 0000 vs 2400

Both labels point at midnight, but at different ends of the day: 0000 opens a day, 2400 closes one — 2400 on Monday is the same instant as 0000 on Tuesday. Hospitals, dispatch centers, and most military units standardize on 0000; write 2400 and scheduling software may reject it or shove the shift onto the next day. When in doubt, use 0000.

The noon trap

The most common beginner error is subtracting 12 from 1200 and writing 0:00 AM. Noon is 1200 = 12:00 PM, no subtraction. Only times above 1200 get the subtract-12 treatment. Memorize the pair: midnight 0000 = 12 AM, noon 1200 = 12 PM — and the converter flags both automatically.

The date trap: what day is 0030?

A flight at 00:30 on October 6 leaves thirty minutes after midnight — in the night between October 5 and October 6. Any time from 00:00 to 00:59 already belongs to the new date. Thinking of it as “Monday night” can turn you up a whole day late, so always check the date and the hour together on late-night bookings.

Who uses this

• Hospitals: dosing charts run on 24-hour time because “8” cannot afford an AM/PM mix-up with a patient on the line.
• Airlines & aviation: the global industry standard — your boarding pass already speaks military time.
• Police, EMS & fire crews: dispatch logs need unambiguous timestamps across midnight.
• Shift workers & managers: warehouses, call centers, and hotels switch after one too many “wait, was that 8 AM or 8 PM?” mix-ups.
• Travelers & international teams: most of Europe, Asia, and South America live on 24-hour time — it is the more universal clock.

Accuracy & limitations

Conversions are exact integer arithmetic — the hour maps by fixed rules, so there is no rounding anywhere. The converter accepts hours 0–23 and minutes 0–59 only; 24:00 is rejected (use 0000 for the start of a day). Pronunciations follow common US military convention (“fourteen thirty”, “oh-eight hundred”); radio procedure may use the NATO phonetic variants (“fife”, “niner”).

Doing timesheet math instead? The hours between times calculator handles overnight shifts and unpaid breaks, and the countdown calculator ticks down to any date. The full walkthrough lives in the how to read military time guide.