How do you write 6:45 AM in military time?

To convert standard time to military time, you begin by noting that military time uses a 24-hour clock system. For times in the AM, the hour remains the same from 1 AM to 11 AM, while 12 AM (midnight) is expressed as 0000 hours.

In this case, 6:45 AM translates directly to military time as 0645 hours. The hour (6) is written as is, and the minutes (45) follow, leading to the notation of 0645 hrs. This format clearly indicates that it is in the morning by using a leading zero for the single-digit hour, consistent with military time standards.

The other options provided either misrepresent the hour or the minutes, confusing the necessary conversion. The emphasis on ensuring both the hour and minute are presented correctly in military format highlights understanding of time notation in various contexts.