Sail Through the 2026 Coast Guard Exam – Anchors Aweigh for Success!

The military time representation for 1:00 AM is 0100. In military time, the hours are expressed in a 24-hour format, where the day starts at midnight, which is represented as 0000. For times after midnight until just before noon, the hours are simply noted by adding a leading zero if it is less than 10. Therefore, 1:00 AM becomes 0100 hours, reflecting one hour past midnight. This system avoids confusion between AM and PM times, making communication more precise, especially in military and operational contexts.

The other options represent different times: 0200 indicates 2:00 AM, 0001 indicates one minute past midnight, and 1000 represents 10:00 AM. Each of these reflects a different time of day, distinct from 1:00 AM.