| Answer | Crossword Clue |
|---|---|
| DIURNAL | On a 24-hour schedule |
| DIEL | Of a 24-hour period |
| LEMANS | Town with a 24-hour race |
| LEMANS | Site of a 24-hour race |
| DIEL | Involving a 24-hour period, in biology |
| LEMANS | Site of a 24-hour auto race |
| ahemeral | not being a full 24 hour day |
| diel | a 24-hour period, in relation to animal behaviour patterns |
| nychthemeral | (Greek) of or relating to a nychthemeron or 24-hour period |
| diel | of or pertaining to a 24-hour period, esp. a regular daily cycle, as of the physiology or behavior of an organism |
