| Clue | Source | Date |
|---|---|---|
| When photography's "blue hour" arrives | Newsday | 28 Jun 2025 |
| Just before nightfall | LA Times Daily | 07 Feb 2025 |
| When twilight begins | Newsday | 10 May 2022 |
| When crepuscular animals are active | Wall Street Journal | 12 Feb 2020 |
| When twilight begins | New York Times | 23 Dec 2019 |
| When twilight begins | ||
| When stars come out | Newsday | 16 Jun 2017 |
| When night falls | Eugene Sheffer | 01 Aug 2016 |
| When night falls | The Washington Post | 04 May 2016 |
| Just after sunset | USA Today | 27 Mar 2016 |
| Just before nightfall | USA Today | 15 Aug 2015 |
| Just before nightfall | ||
| Just after sunset | ||
| Just after sunset | ||
| When streetlights come on | ||
| When streetlights go on | ||
| Just before nightfall | ||
| Just before nightfall | ||
| Just before nightfall | ||
| In the early evening | ||
| When the sun goes down |