| Answer | Crossword Clue |
|---|---|
| EQUINOX | March or September event |
| EQUINOX | March 21 or September 23. |
| equinoxes | The time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20) |
| HUNTERSMOON | Late September or early October event |
| SEMIANNUAL | Occurring in March and September, say |
| autumns | The third season of the year, when crops and fruits are gathered and leaves fall, in the northern hemisphere from September to November and in the southern hemisphere from March to May |
