Date: March 6th 2007

2007034------------------------ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2007034 NANU TYPE: GENERAL * GENERAL MESSAGE TO ALL GPS USERS *

As result of the Energy Policy Act of 2005 Daylight Saving Time (DST) begins in United States time zones on 11 March 2007 This is earlier than the date predicted by the traditional DST algorithm GPS receivers that automatically correct for DST when displaying Local Time should be checked to ensure that the proper DST correction is applied Software or firmware updates may be required, check with your receiver manufacturer for an update

This issue is not known to apply to authorized military GPS receivers, since normally no such equipment performs an automatic DST adjustment

Civil equipment that does not perform DST corrections should not be affected

Contact the GPS Operations Center with civil GPS equipment questions/problem reports

Military GPS equipment does not perform an automatic DST adjustment and should not be affected Contact the GPS Operations Center with military GPS equipment questions/problem reports

* GENERAL MESSAGE TO ALL GPS USERS *

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