24 Military Time Converter

1500 Military Time (3:00 PM)

1500 military time is 3:00 PM on the 12-hour clock. It is spoken as “fifteen hundred” — often with “hours” added: “fifteen hundred hours”.

1500 is the middle of the working afternoon, and it is one of the first military times that genuinely trips people up. 0900 or 1100 read like the clock times they are, but at 1500 the digits stop matching anything on a 12-hour clock face — which is exactly why “what is 1500 hours?” gets asked so often. The answer is 3:00 PM, and the conversion below shows the two-second mental step that gets you there every time.

Also accepts 3-digit input (345 = 0345) and "hrs"
Also accepts "3 pm" or "9.30 pm"

Military

1500

no colon, always four digits

12-hour clock

3:00 PM

AM = morning, PM = afternoon/evening

Spoken as

“fifteen hundred”

often followed by “hours”

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Worked example: “OPORD brief at 1500”

Suppose a schedule reads “platoon brief at 1500” and you need it in ordinary clock time:

  1. Split the digits: hour 15, minutes 00.
  2. 15 is in the 13–23 range, so this is a PM time.
  3. Subtract 12 from the hour: 15 − 12 = 3.
  4. Reattach the minutes: 3:00 PM.

Now the reverse, which is the version parents at a school gate actually need: pickup is at 3:00 PM and the duty roster wants it in military form. PM hour other than 12, so add 12: 3 + 12 = 15, pad the minutes, drop the colon — 1500. The minutes never change in either direction; only the hour is ever touched.

How to say 1500 out loud

1500 is an on-the-hour time, so the convention is “fifteen hundred”, very commonly extended to “fifteen hundred hours”. Nobody says “fifteen zero zero” in conversation. Two useful contrasts: at 1515 the “hundred” disappears and you say “fifteen fifteen”, and on civilian aviation radio the digits are read one by one — “one five zero zero” — because ICAO phraseology treats every number as a digit string. If you are speaking to a person rather than a tower, “fifteen hundred” is the form to use.

Times near 1500

The two hours around 1500 in 15-minute steps — the window where afternoon briefings and pickups actually land.
Military 12-hour clock Spoken as
1400 2:00 PM fourteen hundred
1415 2:15 PM fourteen fifteen
1430 2:30 PM fourteen thirty
1445 2:45 PM fourteen forty-five
1500 3:00 PM fifteen hundred
1515 3:15 PM fifteen fifteen
1530 3:30 PM fifteen thirty
1545 3:45 PM fifteen forty-five
1600 4:00 PM sixteen hundred

1500 with a zone letter: 1500Z and 1500J

In orders, flight plans and weather products you will often see 1500Z rather than plain 1500. The Z (“Zulu”) pins the time to UTC, so 1500Z is 3:00 PM in London in winter but 10:00 AM in New York (EST) and 7:00 AM in Los Angeles (PST) — same instant, different wall clocks. A J suffix (“Juliett”) means local time. If a message just says “1500” with no letter, it almost always means local, but when coordination crosses time zones the letter is what keeps everyone honest. Convert the digits here, then apply your zone offset separately.

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