# 21:40 Time

21:40 time in the 12-hour clock time convention is 09:40 pm. Regular time, normal time and standard time are synonym with the twelve hour clock. 21:40 is the 24-hour clock equivalent of 09:40 pm. Military time means the 24-hour clock time convention without a colon between the hours and minutes: 2140. For an overview, check out the list below the clock. • 21:40 in normal time = 09:40 pm
• 21:40 in regular time = 09:40 pm
• 21:40 in standard time = 09:40 pm
• 21:40 in military time = 2140
• 21:40 in 24 hour clock = 21:40

Keep reading to learn the math involved in changing 21:40.

## Convert 21:40 Time

When it comes to the 21:40 hour conversion, the minutes (last two digits) never change. To get the 12-hour clock equivalent of 21:40 consider only the number of hours (first two digits), then apply these rules:

• If the number of hours is 0, then 0 changes to 12. After the minutes add a blank space followed by am.

As the number of hours of 21:40 is 21, this rule does not apply.

• If the number of hours is in the interval [1;11], then the hour remains the same. After the minutes add a blank space followed by am.

As the hour part of 21:40 is 21, this condition does not pertain.

• If the number of hours is 12, then the hour remains the same. After the minutes add a blank space followed by pm.

As the two first digits of 21:40 is 21, this case is not relevant.

• If the number of hours is in the interval [13;23], then subtract 12. After the minutes add a blank space followed by pm.

As the number of hours of 21:40 is 21, process only this rule.

Ahead is our easy-to-use time converter, and the summary of 21:40 in the form of an image.

## 21:40 Conversion

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If you like to convert a time distinct from 21:40, use our search form or simply overwrite the converter value with your particular time in hh:mm syntax.

In conclusion, If you like to learn more about 21:40 in regular time, read our article what time is 09:40 pm.

Posted in 24 Hour Clock Conversion