Garmin GPS 152 Owner's Manual - Page 82
Appendix B
UPC - 753759028145
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Appendix B Time Offsets + 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 72 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 Longitudinal Zone Offset W180.0º to W172.5º -12 E007.5º to E022.5º +1 W172.5º to W157.5º -11 E022.5º to E037.5º +2 W157.5º to W142.5º -10 E037.5º to E052.5º +3 W142.5º to W127.5º -9 E052.5º to E067.5º +4 W127.5º to W112.5º -8 E067.5º to E082.5º +5 W112.5º to W097.5º -7 E082.5º to E097.5º +6 W097.5º to W082.5º -6 E097.5º to E112.5º +7 W082.5º to W067.5º -5 E112.5º to E127.5º +8 W067.5º to W052.5º -4 E127.5º to E142.5º +9 W052.5º to W037.5º -3 E142.5º to E157.5º +10 W037.5º to W022.5º -2 E157.5º to E172.5º +11 W022.5º to W007.5º -1 E172.5º to E180.0º +12 W007.5º to E007.5º 0