Reference & AI

2400 Military Time

AR 25-50

2400 on the 24-hour clock is 12:00 AM, midnight at the end of the day. Every minute of the hour, the Zulu time by U.S. time zone and how to say it are below.

Reviewed by Guilherme Correia, active-duty U.S. Air Force

2400 in standard time

12:00 AM

Read aloud

twenty-four hundred

The hour before and after

2300 · 0000

AR 25-50 counts military time from 0001 to 2400, so 2400 is the last minute of a day; the same instant is 0000 of the next day on the 24-hour clock.

How 2400 is written and said

AR 25-50, para. 1-26: "Military time will be expressed in a group of four digits, from 0001 to 2400, based on the 24–hour clock system. The first two digits represent the hour after midnight and the last two digits represent the minutes." So 2400 is hour 24, minute 00: 12:00 a.m. (midnight)

Said aloud it is "twenty-four hundred". On paper the same paragraph says "The word "hours" will not be used in conjunction with military time," and that military time is used for memorandums while civilian time is used in letters.

Every hour in military time

0000 12:00 AM0100 1:00 AM0200 2:00 AM0300 3:00 AM0400 4:00 AM0500 5:00 AM0600 6:00 AM0700 7:00 AM0800 8:00 AM0900 9:00 AM1000 10:00 AM1100 11:00 AM1200 12:00 PM1300 1:00 PM1400 2:00 PM1500 3:00 PM1600 4:00 PM1700 5:00 PM1800 6:00 PM1900 7:00 PM2000 8:00 PM2100 9:00 PM2200 10:00 PM2300 11:00 PM2400 12:00 AM

For any other time, in either direction, use the military time converter.

FAQ

2400 military time — frequently asked questions

What time is 2400 in military time?
2400 is 12:00 a.m. (midnight). AR 25-50 counts military time from 0001 to 2400, so 2400 is the last minute of a day; the same instant is 0000 of the next day on the 24-hour clock.
How do you say 2400 in military time?
"Twenty-four hundred." The first two digits are read as the hour and "hundred" stands for the two zeros. In writing, AR 25-50 says the word "hours" is not used with military time: write 2400, not 2400 hours.

Keep going

Next steps

Military Time Converter

Any time, either direction, with the 24-hour chart

Military Alphabet

Alfa to Zulu with the official pronunciations

Julian Date

Today's day of the year and the full-year chart

Military Ranks in Order

Every branch by pay grade

AR 25-50, Preparing and Managing Correspondence, para. 1-26 (10 October 2020, administrative revisions through 4 October 2024) · Federal Aviation Administration, Aeronautical Information Manual, Chapter 4, Section 2, paragraph 4-2-12, Time (read November 11, 2026)

Results are estimates. Always verify with your finance office.

Reviewed by Guilherme Correia · Military Toolkit editorial

View Official Rate Table

Official sources: AR 25-50 on armypubs.army.mil · FAA Aeronautical Information Manual, paragraph 4-2-12.