Appendix c – Garmin GPS 100 User Manual
Page 109
APPENDIX C
LOCAL TIME TO UTC TIME CONVERSION
To find UTC time from your local time, add the adjustment for your longitude
zone given below. (If you are in a daylight savings time zone, subtract one
hour from the adjustment.) For example, if you are at longitude W081°00.00'
and your local time is 11:00 standard time, add 5 hours to obtain UTC time
which is 16:00.
Longitude Zone
Adjust
W180.0°
to
W172.5°
+12
W172.5°
to
W157.5°
+11
W157.5°
to
W142.5°
+10
W142.5°
to
W127.5°
+ 9
W127.5°
to
W112.5°
+ 8
W112.5°
to
W097.5°
+ 7
W097.5°
to
W082.5°
+ 6
W082.5°
to
W067.5°
+ 5
W067.5°
to
W052.5
+ 4
W052.5°
to
W037.5°
+ 3
W037.5°
to
W022.5°
+ 2
W022.5°
to
W007.5°
+ 1
W007.5°
to
E007.5°
0
E007.5°
to
E022.5°
- 1
E022.5°
to
E037.5°
- 2
E037.5°
to
E052.5°
- 3
E052.5°
to
E067.5°
- 4
E067.5°
to
E082.5°
- 5
E082.5°
to
E097.5°
- 6
E097.5°
to
E112.5°
- 7
E112.5°
to
E127.5°
- 8
E127.5°
to
E142.5°
- 9
E142.5°
to
E157.5°
-10
E157.5°
to
E172.5°
-11
E172.5°
to
E180.0°
-12
NOTE: The time zone boundaries given above may be different depending
on your area. Consult your charts for more accurate information concerning
time zones.
C-1