AM · morning
0640 Military Time = 6:40 AM
Answer
0640 = 6:40 AM
“zero six forty hours”
Hours 01–11 are morning hours: drop the leading zero and add AM, so 0640 = 6:40 AM.
- Military time
- 0640
- 24-hour clock
- 06:40
- 12-hour time
- 6:40 AM
- Said aloud
- zero six forty hours
- Minutes since midnight
- 400
- Time until midnight
- 17 h 20 min
Enter 3–4 digits, e.g. 0800, 1430, 2359
Valid timeEnter the time and choose AM or PM
Converted result
Spoken: zero six forty hours
Looking for the PM time?
6:40 PM is 1840 in military time
How to Convert 0640 to Standard Time
0640 converts to 6:40 AM in 3 steps:
- 0640 falls between 0100 and 1159, so drop the leading zero: 640.
- Insert a colon before the last two digits: 6:40.
- Add AM, because hours 01 to 11 are morning: 6:40 AM.
To go the other way, 6:40 AM becomes 0640: add a leading zero to 6, then remove the colon.
0640 Across U.S. Time Zones
When it is 0640 Eastern time, it is 0540 Central, 0440 Mountain and 0340 Pacific. Zulu (UTC) depends on daylight saving time.
| Time zone | Military time | Standard time |
|---|---|---|
| Eastern (ET) | 0640 | 6:40 AM |
| Central (CT) | 0540 | 5:40 AM |
| Mountain (MT) | 0440 | 4:40 AM |
| Pacific (PT) | 0340 | 3:40 AM |
| Alaska (AKT) | 0240 | 2:40 AM |
| Zulu / UTC (winter, EST) | 1140Z | 11:40 AM |
| Zulu / UTC (summer, EDT) | 1040Z | 10:40 AM |
Convert other zones with the military time zone converter.
How to Say 0640
0640 is said “zero six forty hours” in formal military use. Casual speech drops “hours” and often replaces “zero” with “oh”: “oh six forty.” Written in 24-hour clock style, 0640 is 06:40.
Nearby military times
0640 military time: FAQ
What time is 0640 in military time?
0640 is 6:40 AM in standard 12-hour time. Hours 01–11 are morning hours: drop the leading zero and add AM, so 0640 = 6:40 AM.
What is 6:40 AM in military time?
6:40 AM is 0640 in military time, written 06:40 on a 24-hour clock.
How do you say 0640 in military time?
0640 is said “zero six forty hours”.
Is 0640 AM or PM?
0640 is AM: 6:40 AM. The same minutes in the other half of the day, 6:40 PM, are 1840.
See every time in the military time chart, or convert any other time with themilitary time converter.