| Answer | Crossword Clue |
|---|---|
| LENT | Christian calendar period |
| LADYDAY | March 25, in the Christian calendar |
| TENAD | End of the first decade in the Christian calendar |
| YEAR | Calendar period |
| EPACT | Calendar period |
| WEEK | Calendar period |
| YEAR | Calendar period, typically |
| EPACT | Solar-calendar period |
| NONES | Roman calendar period. |
| IDES | Roman calendar period |
| STARDATE | Calendar period, to Kirk |
| LUNISOLAR | Ecliptic period of Julian calendar. |
| intercalate | Interpolate (an intercalary period) in a calendar |
| intercalated | Interpolate (an intercalary period) in a calendar |
| intercalates | Interpolate (an intercalary period) in a calendar |
| intercalating | Interpolate (an intercalary period) in a calendar |
