If a member fails to report to their duty post and their leave expires before 2400 hours, what is considered the first day of unauthorized absence?

The first day of unauthorized absence is considered to be the day after the expiration of leave. This is based on the understanding of military leave regulations, which specify that when a service member's leave officially ends and they do not report back to duty as required, they begin to accumulate unauthorized absence from that point onward.

In this case, if the member's leave expires before 2400 hours and they fail to report back to their duty post, the absence is classified as unauthorized starting the following day. This emphasizes the importance of adhering to leave schedules and the need for service members to return to their posts promptly after leave is over. Understanding this framework is crucial for service members to avoid any potential disciplinary actions associated with unauthorized absences.