0531 in military time is 5:31 AM
- Say it
- Zero five thirty-one hours
- On the radio
- Zero Five Three One Zulu
ZE-RO FIFE TREE WUN ZOO-LOO - Time of day
- In the morning
Looking for the closest quarter hour? See 0530 (5:30 AM).
0531 from where you are
Checking your clock…
Working out your local time…
| Zone | Offset | Military | Regular |
|---|---|---|---|
| Zulu (UTC) | UTC+0 | 0531 | 5:31 AM |
| Eastern Daylight (Quebec) | UTC-4 | 0131 | 1:31 AM |
| Eastern Standard (Romeo) | UTC-5 | 0031 | 12:31 AM |
| Pacific Standard (Uniform) | UTC-8 | 2131 | 9:31 PM the previous day |
Where 0531 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 0500 to 0559
0531 questions
What is 0531 in regular time?
0531 in military time is 5:31 AM in regular 12-hour time. The hour 05 is under 12, so drop the leading zero and add AM: 5:31 AM.
How do you say 0531 in military time?
Say "zero five thirty-one hours." Over the radio, read it digit by digit: "Zero Five Three One Zulu" when it is Zulu time.
What is 5:31 AM in military time?
5:31 AM is 0531 in military time, written with four digits and no colon.
Is 0531 AM or PM?
0531 is AM. Military times from 0000 to 1159 are before noon, so 0531 is 5:31 AM.
What is 0531 Zulu in US time?
0531Z (Zulu, UTC) is 12:31 AM Eastern Standard Time, 1:31 AM Eastern Daylight Time, and 9:31 PM the previous day Pacific Standard Time.
Need a different time? Use the converter or drill yourself for 60 seconds.