Military Time Converter

Convert a 12-hour time to 24-hour time, or the reverse, and use the hour chart.

Smart Tips

• 12:00 AM is 00:00. 12:00 PM is 12:00.

• 1:00 PM is 13:00. Add 12 for 1 PM through 11 PM.

• Type 1345 or 13:45. Both are the same minute.

• 24:00 is not used. Midnight at the start of the day is 00:00.

• The chart lists every hour from 12:00 AM through 11:00 PM.

The Formula

00:00 = 12:00 AM; 12:00 = 12:00 PM; PM hours 1–11 add 12

12 AMHour 00 on the 24-hour clock.

12 PMHour 12. Noon does not add another 12.

+12Applied to 1 PM through 11 PM only.

hhmmFour digits, such as 0000 for midnight and 1300 for 1:00 PM.

The hour chart below is the same mapping, one row per hour, with minutes at 00.

Key Insights

Midnight

12:00 AM converts to 00:00, not 12:00 and not 24:00.

Noon

12:00 PM stays 12:00. Only the afternoon hours after noon add 12.

Four digits

1300 is 1:00 PM. 0000 is 12:00 AM.

Same zone

Military time renames the hour. It does not move the clock to another city.

Hour Chart

12-hour	24-hour	Four digits

Frequently Asked Questions

12:00 AM is 00:00, written 0000. It is the start of the day. This page rejects 24:00.

12:00 PM is 12:00, written 1200. Noon does not become 24:00, and it does not stay 00:00.

Add 12 to hours 1 through 11 PM. 1:00 PM is 13:00. 11:59 PM is 23:59. Morning hours 1 through 11 stay the same, with a leading zero when the hour is below 10.

Yes, in the 24-hour to 12-hour direction. 1345 and 13:45 both become 1:45 PM. 0000 becomes 12:00 AM.

No. 15:00 is 3:00 PM in whatever zone you already mean. Changing zones is the time zone converter.

The page maps 12-hour times onto the 24-hour clock described by ISO 8601. 12:00 a.m. is 00:00, 12:00 p.m. is 12:00, and each afternoon hour from 1 through 11 adds 12. ISO 8601 writes 6 p.m. as 18:00:00. www.iso.org/iso-8601-date-and-time-format.html

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Converted time

Enter a 12-hour or 24-hour time