How do you convert standard time to military time?

To convert standard time to military time, add 12 hours to times after 12 p.m. and remove the punctuation. Military time runs on a 24-hour system without punctuation, while standard time uses a 12-hour system and a colon to separate hours and minutes.

1. Convert the 12-hour system to 24 hours

   For times ending in a.m., do not change the numbers; 12:00 a.m., however, becomes 00:00. For times after 12 p.m., add 12 hours. For example, 1:00 p.m. becomes 13:00.

2. Remove the punctuation

   Remove the colon from the time you have converted. For example, 13:00 becomes 1300.

3. Add placeholder digits if necessary

   Military time always includes 4 digits: two for the hours and two for the minutes. For single-digit hour times, like 400, add a digit at the beginning, so 4 becomes 04, and 400 becomes 0400.