Converting 12-hour time to 24-hour time is straightforward. For times from 1:00 AM to 11:59 AM, you simply use the same number (e.g., 8:00 AM becomes 08:00). For times from 1:00 PM to 11:59 PM, you add 12 to the hour (e.g., 3:00 PM becomes 15:00). Midnight is written as 00:00, and noon is written as 12:00.
