What is the military time when a train departs at 7:00 AM?

Military time is a way of expressing time using a 24-hour clock, as opposed to the standard 12-hour clock format. In military time, hours are represented by two digits ranging from 00 to 23. For example, 7:00 AM in the standard format is expressed as 0700 hours in military time. The first two digits represent the hours, and the last two represent the minutes, which in this case is zero since it is exactly on the hour. Hence, the correct representation of a train departing at 7:00 AM is indeed 0700 hrs.