1400 Military Time

1400 is 2:00 PM, two o’clock in the afternoon. On a 24-hour clock with a colon it is 14:00; in military style the colon goes and the four digits stand alone. The hour is 14 hours after midnight and 10 hours before the next one.

Two in the afternoon. 1400 is a common meeting hour and the most common mix-up with 0400, twelve hours earlier.

To read it, look at the first two digits: the hour is above 12, so subtract 12 and add PM: 14 − 12 = 2. The last two digits are minutes and never change, so 1425 is 2:25 PM and 1450 is 2:50 PM.

Military to 12-hour. Split the four digits into hours and minutes, the hour is above 12, so subtract 12 and add PM: 14 − 12 = 2. So 1415 becomes 2:15 PM and 1445 becomes 2:45 PM.

12-hour to military. 2 PM is a PM hour, so add 12: 2 + 12 = 14. 2:05 PM is 1405. Drop the colon and the AM or PM, and you have the four digits.

The mistakes worth knowing: “14:00 PM” is a mix of both systems and means nothing, because a 24-hour time already says which half of the day it is. And 1400 is not 14:00 AM; there is no 14 o’clock in the morning.

1400 is said “fourteen hundred”. The “hundred” stands in for the two zeros; nobody says “thirteen zero zero”. Numbers from ten upward are said as ordinary numbers: “fourteen hundred”, not “one four hundred”.

Minutes follow the same logic. 1405 is “fourteen zero five” and 1440 is “fourteen forty”. Single-digit minutes get a spoken zero, so the listener knows a digit is there.

About the word “hours”: in speech, “fourteen hundred hours” is everywhere, and nobody will correct you. In writing, Army Regulation 25-50 says the word is not used with military time, so a memorandum reads “at 1400”, not “at 1400 hours”.

On its own, 1400 is local time wherever it is written. When the four digits carry a letter, the letter is the time zone. Z stands for Zulu, which is UTC, and J (Juliet) means the local time of the person speaking. The table converts 1400Z to the four US zones, in standard time and in daylight saving time.

Eastern Time is four hours behind UTC from March to November and five hours behind the rest of the year, which is why one Zulu time maps to two possible local times. The other three zones follow the same pattern an hour further west each.

Midnight has a second spelling, 2400, used when it marks the end of a day rather than the start. The full rules, with a converter, are on the military time chart page.