How is 1:30 PM expressed in military time?

In military time, the 24-hour clock format is used, which eliminates the need for "AM" and "PM" designations. To convert from standard time to military time, you take the hours and adjust them based on whether they fall in the morning or afternoon.

For 1:30 PM, you start with the hour of 1. In military time, any hour after 12:00 PM is represented by adding 12 to the hour. Thus, you add 12 to 1, yielding a military hour of 13. Since the minutes remain unchanged, you have 30 minutes after the hour. Therefore, 1:30 PM is expressed as 1330 in military time, combining the hour (13) and the minutes (30) to arrive at the final answer.