Method rollforward

xarray/coding/cftime_offsets.py:483–488

Roll date forward to nearest start of quarter

(self, date)

    _day_option = "start"

    def rollforward(self, date):
        """Roll date forward to nearest start of quarter"""
        if self.onOffset(date):
            return date
        else:
            return date + QuarterBegin(month=self.month)

    def rollback(self, date):
        """Roll date backward to nearest start of quarter"""