1600 hours = 4:00 PM
1600 hours is 4:00 PM in standard 12-hour time. On a 24-hour clock it is 16:00. Spoken military time is “sixteen hundred hours”.
How to convert 1600
1600 is after noon. Subtract 12 from the hour (16 − 12 = 4) and add PM. The result is 4:00 PM. Hours 1300–2359 are all PM.