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21:39 time means 09:39 PM

21:39 is pronounced as: "twenty-one thirty-nine" o’clock

2139 in military time is 09:39 PM in regular time


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24-hour to 12-hour conversion


Our "Military time converter" is the perfect tool to convert time from a 24-hour system to a 12-hour system. Try it above. Enter both the "Hours" and the "Minutes" boxs in the form, then click "convert to 12-hour". After that, you can see the result.

The 24-hour system (it's called the Military system) is larger than 12:00. And it starts at 00:00 and ends at 23:00. 00:00 means 12:00 midnight, and 23:00 means 11:00 PM. (Note: 24:00 and 00:00 are the same time).



How was 21:39 converted to 09:39 PM ?


1. Step One: To convert 21:39 (twenty-one thirty-nine) to 12-hour, firstly, we didn't convert the minutes, we leave it. In our case it will be ( :39 thirty-nine ). and we just convert the hours.


2. Step Two: If the number of hours on military time (24-hour system) that we need to convert it, is less than 12:00, it will be the same on regular time (12-hour system).

In our case, It's 21 (nine), so we subtract 12 from 21 then add PM like ( 21 - 12 ). It will be 9 PM. (9 PM means 9 in the noon).

The final result is:09:39 PM ( In words: nine thirty-nine in the noon ). Look at the chart below.



Military Time (24-hour system)
24-Hour 12-hour 24-Hour 12-hour
00:39 Midnight 12:39 Noon
01:39 1:39 a.m. 13:39 1:39 p.m.
02:39 2:39 a.m. 14:39 2:39 p.m.
03:39 3:39 a.m. 15:39 3:39 p.m.
04:39 4:39 a.m. 16:39 4:39 p.m.
05:39 5:39 a.m. 17:39 5:39 p.m.
06:39 6:39 a.m. 18:39 6:39 p.m.
07:39 7:39 a.m. 19:39 7:39 p.m.
08:39 8:39 a.m. 20:39 8:39 p.m.
09:39 9:39 a.m. 21:39 9:39 p.m.
10:39 10:39 a.m. 22:39 10:39 p.m.
11:39 11:39 a.m. 23:39 11:39 p.m.


21:39 Clock in different Time Zone

See, The 21:39 time in the other military time zones. Look at the table below.


Time Zone UTC offset 12-hour 24-hour
Yankee UTC-12 09:39 AM 09:39
X-ray UTC-11 10:39 AM 10:39
Whiskey UTC-10 11:39 AM 11:39
Victor UTC-9 12:39 PM 12:39
Uniform UTC-8 01:39 PM 13:39
Tango UTC-7 02:39 PM 14:39
Sierra UTC-6 03:39 PM 15:39
Romeo UTC-5 04:39 PM 16:39
Quebec UTC-4 05:39 PM 17:39
Papa UTC-3 06:39 PM 18:39
Oscar UTC-2 07:39 PM 19:39
November UTC-1 08:39 PM 20:39
Zulu UTC±0 09:39 PM 21:39
Alpha UTC+1 10:39 PM 22:39
Bravo UTC+2 11:39 PM 23:39
Charlie UTC+3 12:39 AM 00:39
Delta UTC+4 01:39 AM 01:39
Echo UTC+5 02:39 AM 02:39
Foxtrot UTC+6 03:39 AM 03:39
Golf UTC+7 04:39 AM 04:39
Hotel UTC+8 05:39 AM 05:39
India UTC+9 06:39 AM 06:39
Kilo UTC+10 07:39 AM 07:39
Lima UTC+11 08:39 AM 08:39
Mike UTC+12 09:39 AM 09:39