| ASLONGAS | For the period of time that (2,4,2) |
| TERTIARY | Old term for the period of geological time that constituted the Paleogene and the Neogene periods of the Cenozoic Era (8) |
| SENTENCE | Period of time that might have been better spent (6,8) |
| COCOBUTTERA | Informal term for the period of time when comedian O'Brien had a historically significant bottom? |
| MORNINGS | The periods of time from dawn to noon (8) |
| HOTSTRIKESUMMER | Moniker for the period of widespread labor activism that began with the W.G.A. walkout (May, 2023) |
| REIGNOFTERROR | Term for the period of massacres and public executions during the French Revolution, 1792-1794 (5,2,6) |
| RUN | Act as manager for the period of a play (3) |
| DURATION | The length of time that something lasts or continues (8) |
| DARKAGES | A name for the period approximately AD500-1000 |
| INTERWAR | Term for the period 1918-39 (8) |
| USANCE | The period of time permitted by commercial usage for the payment of a bill of exchange (6) |
| DECEMBER | Month when the winter solstice (or shortest day) occurs or one of the two months when the period of Advent can commence (8) |
| ROMANERA | Remake of the 1979 film "Norma Rae" that's set during the period of Augustus's reign? |
| JACOBEAN | Characteristic of, or relating to, James I of England or to the period of his rule (8) |
| TRIASSIC | The period of Mesozoic era preceding the Jurassic |
| SEASONAL | Related to the period of the year (8) |
| EON | Period of time that seems endless |
| ADIMEADOZEN | Common period of time, that is, to grab nap |
| MONTH | Period of time that lasts about one lunar cycle |
