How is 10:00 PM expressed in military time?

In military time, hours are expressed on a 24-hour clock starting from midnight (00:00) to 23:59, making it essential for clarity in communication, particularly in military operations where precise timing is crucial.

For 10:00 PM in standard time, you convert it to military time by adding 12 to the hour, since it falls within the second half of the day. Thus, 10 PM becomes 22:00. This is why the military time for 10:00 PM is represented as 2200, denoting 22 hours and 0 minutes from the start of the day.

The other options represent different hours: 2100 corresponds to 9:00 PM, 2300 reflects 11:00 PM, and 2400 represents midnight or the end of the day, which is not applicable to 10:00 PM.