code: public static EGpsWeekDays gpsWeekTime2WeekDay( double gpsWeekTime ) {
          int seconds = (int) gpsWeekTime;
          // week starts with Sunday
          EGpsWeekDays day4Seconds = EGpsWeekDays.getDay4Seconds(seconds);
          return day4Seconds;
      }
docs: Convert GPS Week Time to the day of the week.
  
  @param gpsWeekTime the gps time.
  @return the day of the week.