1300 hours on a 24-hour clock is equivalent to which of the following in the 12-hour clock?

1300 hours on a 24-hour clock is equivalent to which of the following in the 12-hour clock?

• A. 1:15 PM
• B. 1:45 PM
• C. 1:30 PM
• D. 1:00 PM

Answer: (D)

Converting from a 24-hour clock to a 12-hour clock involves subtracting 12 from the hour part when the time is after noon. Here, the hour is 13 and the minutes are 00. Subtracting 12 gives 1, and since it’s after noon, it’s PM. With zero minutes, it’s exactly on the hour, so the time is 1:00 PM. The other options would require different minutes (for example, 1:15 PM would be 1315 hours, and so on), but 1300 corresponds to 1:00 PM.

Converting from a 24-hour clock to a 12-hour clock involves subtracting 12 from the hour part when the time is after noon. Here, the hour is 13 and the minutes are 00. Subtracting 12 gives 1, and since it’s after noon, it’s PM. With zero minutes, it’s exactly on the hour, so the time is 1:00 PM. The other options would require different minutes (for example, 1:15 PM would be 1315 hours, and so on), but 1300 corresponds to 1:00 PM.