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GPS Week Number Rollover

Most clocks obtain their time from Coordinated Universal Time (UTC). But the atomic clocks on satellites use GPS time. When the Global Positioning System was first implemented, the time and date function are defined by a 10-bit number, and unlike Gregorian calendars which use the month, date, and year format, the GPS date is a "week number," or WN. The WN is transmitted as a 10-bit field to navigation systems and it rolls over or resets to zero every 1,024 weeks. Saturday, April 6th, 2019 marked the 2nd time GPS clocks needed to be reset. The system's UTC clock WN counter was reset back to 0000000000, and that might have caused some problems for older standalone GPS systems and apps.

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