| Clue | Source | Date |
|---|---|---|
| Moment to get serious about a task | USA Today | 01 Feb 2024 |
| Critical moment, in slang | ||
| Moment to act | Wall Street Journal | 16 Apr 2022 |
| Moment to get serious, slangily | Universal | 06 Feb 2022 |
| Critical moment | USA Today | 07 Jul 2021 |
| D-day | Wall Street Journal | 01 May 2021 |
| D-day | ||
| Crucial hour, informally | New York Times | 01 Jun 2018 |
| Crucial hour, informally | ||
| D-day | The Washington Post | 30 Mar 2016 |
| Moment to take action |