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Garmin GPSMAP 168 Sounder User Manual

Page 96

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85

Appendix B

Time Offsets

The chart below gives an approximate UTC (Universal Time Coordinate) time offset for the various

longitudinal zones. Check with local charts for more detailed information. If you are in daylight savings
time, add one hour to the offset.

Longitudinal Zone

Offset

W180.0º to W172.5º

-12

W172.5º to W157.5º

-11

W157.5º to W142.5º

-10

W142.5º to W127.5º

-9

W127.5º to W112.5º

-8

W112.5º to W097.5º

-7

W097.5º to W082.5º

-6

W082.5º to W067.5º

-5

W067.5º to W052.5º

-4

W052.5º to W037.5º

-3

W037.5º to W022.5º

-2

W022.5º to W007.5º

-1

W007.5º to E007.5º

0

E007.5º to E022.5º

+1

E022.5º to E037.5º

+2

E037.5º to E052.5º

+3

E052.5º to E067.5º

+4

E067.5º to E082.5º

+5

E082.5º to E097.5º

+6

E097.5º to E112.5º

+7

E112.5º to E127.5º

+8

E127.5º to E142.5º

+9

E142.5º to E157.5º

+10

E157.5º to E172.5º

+11

E172.5º to E180.0º

+12

Longitudinal Zone

Offset

A simple way to determine your local time offset is how
many hours you are behind or ahead of UTC (also called
‘Greenwich’ or ‘zulu’ time).
Example: EST (Eastern Standard Time) is 5 hours behind
UTC, so your offset would be -5. Adding one hour for
daylight savings would make EDT (Eastern Daylight Time)
-4. Subtract an hour for each time zone as you travel west.

Offsets for Continental U.S. would be:
EST

-5

EDT

-4

CST

-6

CDT

-5

MST

-7

MDT

-6

PST

-8

PDT

-7

+

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11/18/2002, 3:38:09 PM