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21:40 time means 09:40 PM

21:40 is pronounced as: "twenty-one forty" o’clock

2140 in military time is 09:40 PM in regular time

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Converstion Samples

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 21:40 converted to 09:40 PM ?

1. Step One: To convert 21:40 (twenty-one forty) to 12-hour, firstly, we didn't convert the minutes, we leave it. In our case it will be ( :40 forty ). 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:09:40 PM ( In words: nine forty in the noon ). Look at the chart below.

Military Time (24-hour system)
24-Hour 12-hour 24-Hour 12-hour
00:40 Midnight 12:40 Noon
01:40 1:40 a.m. 13:40 1:40 p.m.
02:40 2:40 a.m. 14:40 2:40 p.m.
03:40 3:40 a.m. 15:40 3:40 p.m.
04:40 4:40 a.m. 16:40 4:40 p.m.
05:40 5:40 a.m. 17:40 5:40 p.m.
06:40 6:40 a.m. 18:40 6:40 p.m.
07:40 7:40 a.m. 19:40 7:40 p.m.
08:40 8:40 a.m. 20:40 8:40 p.m.
09:40 9:40 a.m. 21:40 9:40 p.m.
10:40 10:40 a.m. 22:40 10:40 p.m.
11:40 11:40 a.m. 23:40 11:40 p.m.

21:40 Clock in different Time Zone

See, The 21:40 time in the other military time zones. Look at the table below.

Time Zone UTC offset 12-hour 24-hour
Yankee UTC-12 09:40 AM 09:40
X-ray UTC-11 10:40 AM 10:40
Whiskey UTC-10 11:40 AM 11:40
Victor UTC-9 12:40 PM 12:40
Uniform UTC-8 01:40 PM 13:40
Tango UTC-7 02:40 PM 14:40
Sierra UTC-6 03:40 PM 15:40
Romeo UTC-5 04:40 PM 16:40
Quebec UTC-4 05:40 PM 17:40
Papa UTC-3 06:40 PM 18:40
Oscar UTC-2 07:40 PM 19:40
November UTC-1 08:40 PM 20:40
Zulu UTC±0 09:40 PM 21:40
Alpha UTC+1 10:40 PM 22:40
Bravo UTC+2 11:40 PM 23:40
Charlie UTC+3 12:40 AM 00:40
Delta UTC+4 01:40 AM 01:40
Echo UTC+5 02:40 AM 02:40
Foxtrot UTC+6 03:40 AM 03:40
Golf UTC+7 04:40 AM 04:40
Hotel UTC+8 05:40 AM 05:40
India UTC+9 06:40 AM 06:40
Kilo UTC+10 07:40 AM 07:40
Lima UTC+11 08:40 AM 08:40
Mike UTC+12 09:40 AM 09:40