The second moon cycle of the Choctaw winter season, Onáfa, starts today. The new Choctaw lunar month is called Hohchafo Chito. This is based on an alignment of the Choctaw months with the a lunisolar calendar, and the new season beginning the first new moon after the autumnal equinox. Using this system the Choctaw year could be counted as seen in this workbook1-2
The summer season, Toffa, would start on the first new moon after the vernal equinox. The Choctaw had an intercalary month, which accounts for the extra moon cycle before the equinox every few years. All the dates in the workbook are aligned with the Choctaw homeland as reported at this site by the U.S. Naval Observatory.