What is the military time equivalent of 9:00 PM?

The military time equivalent of 9:00 PM is 2100. In military time, the hours are counted from 0000 (midnight) to 2359 (one minute before midnight the next day).

To convert standard time to military time for the evening hours, you add 12 to the hour. Since 9:00 PM is in the evening, you take 9 and add 12, resulting in 21. Therefore, 9:00 PM is expressed as 2100 hours.

Understanding this conversion is crucial for navigation and communication in military and maritime contexts, where clarity and precision in timekeeping are essential.