def _calculate_timestamps(self):
self._timestamps_data = []<EOL>if not self._is_reversed:<EOL><INDENT>self._calc_timestamps(self.st_time, self.end_time)<EOL><DEDENT>else:<EOL><INDENT>self._calc_timestamps(self.st_time, DateTime.from_hoy(<NUM_LIT>))<EOL>self._calc_timestamps(DateTime.from_hoy(<NUM_LIT:0>), self.end_time)<EOL><DEDENT>
Return a list of Ladybug DateTime in this analysis period.