Military Time Converter: 24-Hour to 12-Hour and Back

Type a time either way round, 1730 or 5:30 PM, and get the military time, the standard AM/PM time, the 24-hour clock form and how it is said aloud.

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Military time to standard time

Military time: 1730; 1730 hours
Standard (12-hour) time: 5:30 PM
24-hour clock: 17:30
Said aloud: seventeen thirty hours

How it converts

Step	Value
You entered	1730
Read as	Military (24-hour) time
Rule	Hours 13 to 23 have 12 subtracted and take PM: 17 − 12 = 5.
Minutes	Unchanged: 30
Result	5:30 PM

Summary

1730 military time is 5:30 PM in standard time.

Quick answers

How do you convert military time to regular time?: For 1300 to 2359, subtract 12 from the hour and add PM: 1730 is 5:30 PM. For 0100 to 1159, keep the hour and add AM: 0545 is 5:45 AM. 0000 to 0059 is the 12 AM hour and 1200 to 1259 is the 12 PM hour.
What is 1700 in military time?: 1700 is 5:00 PM. Subtract 12 from 17 to get 5, and because the hour is past noon it is PM. It is said seventeen hundred hours.
What is 3 PM in military time?: 3 PM is 1500. Add 12 to any PM hour from 1 to 11, so 3 + 12 = 15, and write it with two zeros for the minutes. It is said fifteen hundred hours.
What is 2100 in regular time?: 2100 is 9:00 PM. 21 minus 12 is 9, and the hour is after noon, so it is PM.
Is midnight 0000 or 2400?: Both refer to midnight. 0000 is the start of a day and 2400 is the end of the day before, and each equals 12:00 AM. Times after midnight always use 00, so a quarter past midnight is 0015, not 2415.
What is 12 PM in military time?: 12 PM (noon) is 1200. Noon is the one PM hour that does not have 12 added. 12 AM (midnight) is 0000.
How do you say military time?: Say the hour and the minutes as two pairs, with a leading zero spoken. 0545 is zero five forty-five, 1730 is seventeen thirty, and a time on the hour ends in hundred: 0800 is zero eight hundred hours, 2000 is twenty hundred hours.

What Military Time Converter does

Military time counts the hours of the day from 00 to 23 and writes the time as four digits with no colon and no AM or PM, so 5:30 PM is 1730. To convert by hand, subtract 12 from any hour from 13 to 23 and call it PM; hours 01 to 11 are AM as they stand, 00 is 12 AM and 12 is 12 PM. This military time converter works in both directions from one box. Type a 24-hour time and it returns the standard time; type a time with AM or PM and it returns the four-digit form. Each result also shows the rule that was applied and the spoken version, such as seventeen thirty hours.

Military time chart: all 24 hours with standard time and pronunciation

Every hour of the day as returned by the converter. Minutes carry over unchanged, so 1445 is 2:45 PM.

Military time	Standard time	24-hour clock	Said aloud
0000	12:00 AM (midnight)	00:00	zero hundred hours
0100	1:00 AM	01:00	zero one hundred hours
0200	2:00 AM	02:00	zero two hundred hours
0300	3:00 AM	03:00	zero three hundred hours
0400	4:00 AM	04:00	zero four hundred hours
0500	5:00 AM	05:00	zero five hundred hours
0600	6:00 AM	06:00	zero six hundred hours
0700	7:00 AM	07:00	zero seven hundred hours
0800	8:00 AM	08:00	zero eight hundred hours
0900	9:00 AM	09:00	zero nine hundred hours
1000	10:00 AM	10:00	ten hundred hours
1100	11:00 AM	11:00	eleven hundred hours
1200	12:00 PM (noon)	12:00	twelve hundred hours
1300	1:00 PM	13:00	thirteen hundred hours
1400	2:00 PM	14:00	fourteen hundred hours
1500	3:00 PM	15:00	fifteen hundred hours
1600	4:00 PM	16:00	sixteen hundred hours
1700	5:00 PM	17:00	seventeen hundred hours
1800	6:00 PM	18:00	eighteen hundred hours
1900	7:00 PM	19:00	nineteen hundred hours
2000	8:00 PM	20:00	twenty hundred hours
2100	9:00 PM	21:00	twenty-one hundred hours
2200	10:00 PM	22:00	twenty-two hundred hours
2300	11:00 PM	23:00	twenty-three hundred hours
2400	12:00 AM (midnight)	24:00	twenty-four hundred hours

2400 is the end-of-day form of midnight and the same instant as 0000 on the following day. Speakers often say oh in place of zero, as in oh eight hundred.

Rules for converting between 24-hour and 12-hour time

The minutes never change. Only the hour and the AM or PM label do.

0000 to 0059: the hour becomes 12 and the time is AM. 0030 is 12:30 AM.
0100 to 1159: the hour stays as it is, without the leading zero, and the time is AM. 0715 is 7:15 AM.
1200 to 1259: the hour stays 12 and the time is PM. 1245 is 12:45 PM.
1300 to 2359: subtract 12 from the hour and the time is PM. 2215 is 10:15 PM.
12:00 AM to 12:59 AM: the hour becomes 00. 12:30 AM is 0030.
1:00 AM to 11:59 AM: keep the hour and write it with two digits. 9:05 AM is 0905.
12:00 PM to 12:59 PM: the hour stays 12. 12:45 PM is 1245.
1:00 PM to 11:59 PM: add 12 to the hour. 6:45 PM is 1845.

Military time conversion examples

An afternoon time to standard

Time 1730

Standard time 5:30 PM, 24-hour clock 17:30, said seventeen thirty hours

The rule shown is 17 − 12 = 5. This is the value the page loads with.

Standard time to military

Time 6:45 PM

Military time 1845, 24-hour clock 18:45, said eighteen forty-five hours

Early morning with a leading zero

Time 0545

Standard time 5:45 AM, said zero five forty-five hours

Just after midnight

Time 12:30 am

Military time 0030, 24-hour clock 00:30, said zero zero thirty hours

The last minute of the day

Time 2359

Standard time 11:59 PM, said twenty-three fifty-nine hours

Minutes below ten

Time 9:05 am

Military time 0905, said zero nine zero five hours

A time with seconds

Time 2:15:09 pm

Military time 141509, 24-hour clock 14:15:09, said fourteen fifteen hours and nine seconds

A 12-hour time typed without AM or PM

Time 5:30, with If no AM or PM is typed set to Treat it as PM

Military time 1730, Standard time 5:30 PM

On the default setting the same entry is read as 0530, which is 5:30 AM, and a note points this out.

Military time, the 24-hour clock and Zulu time

Military time and the 24-hour clock count the day the same way. The difference is in how the time is written and spoken. The 24-hour clock used on timetables and in most of the world puts a colon between hours and minutes, as in 17:30. Military usage drops the colon, always writes four digits, and adds the word hours when speaking: 1730 hours. The converter shows both so you can use whichever your form or schedule expects.

A four-digit military time says nothing about the time zone. When a zone is needed, a letter is added after the digits. The best known is Z, spoken Zulu, which marks Coordinated Universal Time (UTC): 1730Z is 17:30 UTC wherever you are. This page converts the notation only. It does not shift a time between zones, so to turn 1730Z into your local time use a time zone converter after reading the hour here.

The 24-hour form removes the two usual sources of error in 12-hour time: leaving off AM or PM, and confusion over whether 12:00 AM is noon or midnight. That is why it is standard for shift rosters, medical charts, transport timetables and logs.

Times people often look up in military time

Common clock times with minutes, converted with the tool.

Standard time	Military time	Said aloud
12:01 AM	0001	zero zero zero one hours
12:15 AM	0015	zero zero fifteen hours
6:30 AM	0630	zero six thirty hours
7:15 AM	0715	zero seven fifteen hours
12:30 PM	1230	twelve thirty hours
3:30 PM	1530	fifteen thirty hours
4:20 PM	1620	sixteen twenty hours
4:45 PM	1645	sixteen forty-five hours
8:30 PM	2030	twenty thirty hours
10:30 PM	2230	twenty-two thirty hours
11:15 PM	2315	twenty-three fifteen hours

How to get your result

1
In Time, type the time you have. For military or 24-hour time use 1730, 17:30 or 0545. For standard time include AM or PM, as in 5:30 PM or 5pm.
2
If your time has no AM or PM and you do not mean 24-hour time, change If no AM or PM is typed to Treat it as AM or Treat it as PM.
3
Read Military time, Standard (12-hour) time and 24-hour clock under the result heading, plus Said aloud for the spoken form.
4
Check the How it converts table for the rule used on the hour, then copy the Summary line if you need the answer as a sentence.

Common questions

Do I have to type four digits?

No. 1730, 17:30, 930, 9:30 and a bare hour such as 17 are all read as 24-hour time, and the result is always written back as four digits. The word hours after the digits is ignored, so 1730 hours works too.

What happens if I type 5:30 with no AM or PM?

It is read as 24-hour time, giving 0530 and 5:30 AM, and a note explains the assumption. Add PM to the time, or set the option beside it to Treat it as PM, to get 1730 instead.

Is there a 2430 or 2500 in military time?

No. The hour runs from 00 to 23, and 2400 exists only as the exact end of a day. Half past midnight is 0030. The converter rejects hours above 23 other than 2400, and minutes above 59.

Why is 12 AM written as 0000 and not 1200?

The 24-hour day starts counting from zero at midnight, so the first hour is hour 00. 1200 is twelve hours later, at noon. In 12-hour time both are numbered 12, which is the source of the confusion.

Does military time use a colon?

Not in military writing: the time is four digits run together, such as 0930. The 24-hour clock used by civilians writes the same time as 09:30. The converter gives both forms in every result.

Can it convert a time with seconds?

Yes. Enter six digits such as 173045, or a colon form such as 2:15:09 PM. The seconds are carried through to every output, and the spoken form adds them at the end.

Does it convert Zulu or UTC time to my local time?

No. It changes the notation between 24-hour and 12-hour and leaves the time zone alone. A trailing Z is not accepted in the box; remove it, convert the digits, and apply the zone difference separately.

Do the Army, Navy and Air Force say times the same way?

The written four-digit form is the same. Spoken habits vary: some say zero and others oh for a leading 0, and the word hours is sometimes dropped. The Said aloud line uses zero and includes hours.