Convert between standard 12-hour (AM/PM) time and military (24-hour) time with this interactive chart tool. Enter any standard time using the hours, minutes, and AM/PM fields to get the exact military time equivalent — or enter a military time value to convert it back. The full military time chart is displayed below so you can reference all 24 hours at a glance.
Converted Time
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Time of Day
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How to Say It
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Military time is a 24-hour timekeeping system used by the military, emergency services, hospitals, and international aviation. Instead of repeating hours 1–12 twice a day with AM/PM, it counts continuously from 0000 (midnight) to 2359 (one minute before midnight). This eliminates ambiguity between morning and afternoon times.
For AM times, simply drop the colon and leading zero if needed — for example, 9:45 AM becomes 0945. For PM times, add 1200 to the hour — so 2:30 PM becomes 1430. The only exception is 12:00 AM (midnight), which is 0000, and 12:00 PM (noon), which is 1200.
For military times from 0000–1159, it's AM — just add a colon and leading zero as needed (e.g. 0730 = 7:30 AM). For 1200–2359, subtract 1200 to get the PM hour (e.g. 1845 − 1200 = 6:45 PM). Midnight (0000) is 12:00 AM and noon (1200) is 12:00 PM.
Military time is spoken by reading the four-digit number aloud followed by 'hours.' For example, 0900 is pronounced 'zero nine hundred hours,' 1430 is 'fourteen thirty hours,' and 0030 is 'zero zero thirty hours.' The word 'hours' is often dropped in casual usage.
12:00 AM (midnight) is 0000 in military time, sometimes written as 0000 or referred to as 'zero hundred hours.' The end of a day at midnight can also be expressed as 2400, though 0000 is the standard notation for the start of a new day.
12:00 PM (noon) is 1200 in military time, pronounced 'twelve hundred hours.' This is one of the common points of confusion since 12 PM does not follow the 'add 1200' rule — noon stays at 1200.
Military time is standard in the armed forces, aviation, maritime navigation, emergency services (police, fire, EMS), hospitals, and in most countries outside the United States as everyday clock format. It's also widely used in computing, logistics, and scheduling to avoid AM/PM confusion.
They are essentially the same system. The 24-hour clock (used internationally) formats time as HH:MM, such as 14:30. Military time omits the colon and pads to four digits, writing the same time as 1430. Military usage also includes spoken conventions like 'hundred hours' that civilian 24-hour clocks don't use.