0638 in military time is 6:38 AM
- Say it
- Zero six thirty-eight hours
- On the radio
- Zero Six Three Eight Zulu
ZE-RO SIX TREE AIT ZOO-LOO - Time of day
- In the morning
Looking for the closest quarter hour? See 0645 (6:45 AM).
0638 from where you are
Checking your clock…
Working out your local time…
| Zone | Offset | Military | Regular |
|---|---|---|---|
| Zulu (UTC) | UTC+0 | 0638 | 6:38 AM |
| Eastern Daylight (Quebec) | UTC-4 | 0238 | 2:38 AM |
| Eastern Standard (Romeo) | UTC-5 | 0138 | 1:38 AM |
| Pacific Standard (Uniform) | UTC-8 | 2238 | 10:38 PM the previous day |
Where 0638 falls on a shift
Navy watches are fixed. Hospital shifts vary by facility; these are the common patterns.
| Mid watch | 0000–0400 |
| Morning watch | 0400–0800 |
| Forenoon watch | 0800–1200 |
| Afternoon watch | 1200–1600 |
| First dog watch | 1600–1800 |
| Last dog watch | 1800–2000 |
| First watch | 2000–2400 |
| Day shift, 12-hour | 0700–1900 |
| Night shift, 12-hour | 1900–0700 |
| Day shift, 8-hour | 0700–1500 |
| Evening shift, 8-hour | 1500–2300 |
| Night shift, 8-hour | 2300–0700 |
Every minute from 0600 to 0659
0638 questions
What is 0638 in regular time?
0638 in military time is 6:38 AM in regular 12-hour time. The hour 06 is under 12, so drop the leading zero and add AM: 6:38 AM.
How do you say 0638 in military time?
Say "zero six thirty-eight hours." Over the radio, read it digit by digit: "Zero Six Three Eight Zulu" when it is Zulu time.
What is 6:38 AM in military time?
6:38 AM is 0638 in military time, written with four digits and no colon.
Is 0638 AM or PM?
0638 is AM. Military times from 0000 to 1159 are before noon, so 0638 is 6:38 AM.
What is 0638 Zulu in US time?
0638Z (Zulu, UTC) is 1:38 AM Eastern Standard Time, 2:38 AM Eastern Daylight Time, and 10:38 PM the previous day Pacific Standard Time.
Need a different time? Use the converter or drill yourself for 60 seconds.