0700 Zulu Time

  1. How To Say Zulu Time
  2. 0700 Zulu Time Now


With all the time zones in the world, pilots need a way to reference the current, past or future time, and not have to worry about what time zone they are in.

Military time notation is based on 24-hour clock. A time of day is written in the form hhmm, where hh (0-23) stands for full hours that have passed since midnight, mm (00-59) is the number of minutes that have passed since the last full hour. To make the conversion to your local time, see the chart below. Find your local time in the first column. If you are on Eastern Daylight Savings Time (EDT), you would use the second column to find your Zulu Time/UTC. For instance, if it's 11 a.m. Eastern Daylight Savings Time in Washington, D.C., it's 1500 hours in Zulu time/UTC. See legend below.

This is where Zulu Time comes into play. Because a pilot may cross several time zones during a flight, a standard time system has been adopted. It is called Universal Coordinated Time (UTC) and is referred to as Zulu time. UTC is the time at the 0° line of longitude which passes through Greenwich, England. All of the time zones around the world are based on this reference. It is presented in the local Military time at Greenwich, England

To make the conversion to your local time, see the chart below. Find your local time in the first column. If you are on Eastern Daylight Saving Time (EDT), you would use the second column to find your Zulu Time/UTC. For instance, if it's 11 a.m. Eastern Daylight Saving Time in Washington, D.C., it's 1500 hours in Zulu time. Zulu Time Zone is 7 hours ahead of Pacific Daylight Time. In Z is 5:00 pm. Z to PST call time. Best time for a conference call or a meeting is between 4pm-6pm in Z which corresponds to 8am-10am in PST.

To convert to this time in the United States, a pilot should do the following:

0700
Standard timeDaylight saving time
EasternAdd 5 HoursAdd 4 Hours
CentralAdd 6 HoursAdd 5 Hours
MountainAdd 7 HoursAdd 6 Hours
PacificAdd 8 HoursAdd 7 Hours
Gmt 0700 time

For daylight saving time, 1 hour should be subtracted from the calculated times.

Taken from the Pilots handbook of aeronautical knowledge (FAA-8083-25)

In order to determine Zulu time, you must first convert the local time into military time:

To obtain Military time from local time:

After 12 PM, add or subtract 12
Before 12 PM, do nothing
Example:
2:00 pm: 2 + 12 = 14 or 1400 Military time
10:00 am = 1000 (ten hundred hours)
8:00 am = 0800 (zero eight hundred hours)

To obtain local time when Zulu time is known:
Zulu Time - Factor = Local Military time
To obtain Zulu time when local time is known:
Local Military Time + Factor = Zulu Time

Factor is the offset from GMT (Greenwich Mean Time). It can be obtained from the Airport / Facility Directory (A/FD)

Local Time Local Military Time Zulu Time (Summer +5) Zulu Time (Normal +6)
12:00 AM000005000600
1:00 AM010006000700
2:00 AM020007000800
3:00 AM030008000900
4:00 AM040009001000
5:00 AM050010001100
6:00 AM060011001200
7:00 AM070012001300
8:00 AM080013001400
9:00 AM090014001500
10:00 AM100015001600
11:00 AM110016001700
12:00 PM120017001800
1:00 PM130018001900
2:00 PM140019002000
3:00 PM150020002100
4:00 PM160021002200
5:00 PM170022002300
6:00 PM180023000000
7:00 PM190000000100
8:00 PM200001000200
9:00 PM210002000300
10:00 PM220003000400
11:00 PM230004000500

For example, the Texas A/FD shows that the offset for Houston is -6(-5DT). This means that this time zone is 6 hours behind Greenwich, and when daylight saving time is active, it is 5 hours behind.

Examples:

Determine Zulu time for a local time of 3:45 PM, and time zone of Central Standard Time (CST) (UTC-6(-5DT))

How To Say Zulu Time

3pm is after 12pm, so we add 12 (3 + 12 = 15), so 3:45 PM = 1545 Military

To obtain Zulu time when local time is known:
Local Military Time + Factor = Zulu Time

Pst is utc

0700 Zulu Time Now

1545 + 6 Hours = 2145Z

Determine Zulu time for a local time of 9:30 AM, and time zone of Central Daylight Time (CDT) (UTC-6(-5DT))

9 AM is before 12 pm, so we don't add or subtract anything to get military time:
9:30 AM = 0930 Local Military Time

To obtain Zulu time when local time is known:
Local Military Time + Factor = Zulu Time

0930 + 5 hours = 3:30 PM

(Note we used 5, and not 6. In this example, we are on daylight saving time. (CDT))

3pm is after 12pm, so we add 12 (3 + 12 = 15), so 3:30 PM = 1530 Zulu Time

Determine local time for a Zulu time of 1710Z, and time Zone of Eastern Daylight Time (EDT) (UTC-5(-4DT))

To obtain local time when Zulu time is known:
Zulu Time - Factor = Local Military time

1710 - 4 hours = 1310 Local Military time

(Note we used 4, and not 5. In this example, we are on daylight saving time. (EDT))

13 is greater than 12, so our time will be in PM. We subtract 12, and get 1

1310 Local Military time = 1:10 PM

The A/FD is digitally available to the public. You can download and print excerpts from any A/FD in print from the internet:

For more information, follow the link below to the FAA's AIM (Aeronautical Information Manual) article on Time: