Garmin GPSMAP 172 Owner's Manual

Also see for GPSMAP 172: Installation instructions Specifications Quick reference

Contents

The chart below gives an approximate UTC (Universal Time Coordinate) time offset for the variouslongitudinal zones. Check with local charts for more detailed information. If you are in daylight savingstime, add one hour to the offset.Longitudinal Zone OffsetW180.0º to W172.5º -12W172.5º to W157.5º -11W157.5º to W142.5º -10W142.5º to W127.5º -9W127.5º to W112.5º -8W112.5º to W097.5º -7W097.5º to W082.5º -6W082.5º to W067.5º -5W067.5º to W052.5º -4W052.5º to W037.5º -3W037.5º to W022.5º -2W022.5º to W007.5º -1W007.5º to E007.5º 0E007.5º to E022.5º +1E022.5º to E037.5º +2E037.5º to E052.5º +3E052.5º to E067.5º +4E067.5º to E082.5º +5E082.5º to E097.5º +6E097.5º to E112.5º +7E112.5º to E127.5º +8E127.5º to E142.5º +9E142.5º to E157.5º +10E157.5º to E172.5º +11E172.5º to E180.0º +12A simple way to determine your local time offset is howmany hours you are behind or ahead of UTC (also called‘Greenwich’ or ‘zulu’ time).Example: EST (Eastern Standard Time) is 5 hours behindUTC, so your offset would be -5. Adding one hour for day-light 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 -4CST -6 CDT -5MST -7 MDT -6PST -8 PDT -7HLongitudinal Zone Offset0Appendix BTime Offsets