If a flight departs at 6:00 A.M., what is the military time representation?

The military time representation for a flight that departs at 6:00 A.M. is 0600. In military time, the hours from midnight to 12:00 noon are represented by the numbers 00 to 12, corresponding to the standard 12-hour clock format. In this format, 6:00 A.M. is simply expressed as 0600, where the first two digits represent the hour (06), and the last two digits represent the minutes (00).

This system eliminates the ambiguity of A.M. and P.M. by using a 24-hour clock format, making it easier to communicate schedules clearly, especially in environments like aviation. The other times listed do not represent 6:00 A.M.; 0700 would be 7:00 A.M., 0900 corresponds to 9:00 A.M., and 1200 indicates noon.