Fill the class with the appropriate values extracted from the given timestamp.

        :param ts:  A POSIX timestamp.

def fill_from_timestamp(self, ts):
        """
        Fill the class with the appropriate values extracted from the given timestamp.

        :param ts:  A POSIX timestamp.
        """
        dt = datetime.datetime.fromtimestamp(ts)
        self.wYear = dt.year
        self.wMonth = dt.month
        self.wDayOfWeek = dt.isoweekday() % 7 # :/
        self.wDay = dt.day
        self.wHour = dt.hour
        self.wMinute = dt.minute
        self.wSecond = dt.second
        self.wMilliseconds = dt.microsecond // 1000