0637 military time is 6:37 AM

6:37 AM in every format

12-hour clock	6:37 AM
24-hour clock	06:37
Military time	0637 hours
Military pronunciation	zero six thirty-seven hours
ISO 8601	T06:37:00
In words	Twenty-three minutes to seven
Part of the day	Morning
Minutes since midnight	397
Day progress	27.57%

Military time uses four digits without a colon and counts hours from 00 to 23. 0637 is pronounced “zero six thirty-seven hours”.

Hours 01–11 stay the same and take AM: 06:37 → 6:37 AM.

When a time zone matters, the military adds a letter: 0637Z means 0637 in UTC, known as Zulu time.

0637 is 6:37 AM.

Say “zero six thirty-seven hours”.