| Clue | Length | Answer |
|---|---|---|
| Zero hour | 4 letters | pass |
| Zero hour | 5 letters | start |
| Zero hour | 5 letters | pinch |
| Zero hour | 5 letters | a-day |
| Zero hour | 5 letters | d-day |
| Zero hour | 6 letters | kairos |
| Zero hour | 6 letters | crisis |
| Zero hour | 6 letters | h-hour |
| Zero hour | 6 letters | strait |
| Zero hour | 8 letters | deadline |
| Zero hour | 8 letters | exigency |
| Zero hour | 9 letters | emergency |
| Zero hour | 10 letters | crossroads |
| Zero hour | 10 letters | target-day |
| Zero hour | 11 letters | contingency |
| Zero hour | 11 letters | target-date |
| Zero hour | 12 letters | nick-of-time |
| Zero hour | 13 letters | turning-point |
| Zero hour | 13 letters | eleventh-hour |
| Zero hour | 14 letters | charged-moment |
| Zero hour | 14 letters | crucial-moment |
| Zero hour | 15 letters | critical-moment |
| Zero hour | 15 letters | decisive-moment |
| Zero hour | 15 letters | kairotic-moment |
| Zero hour | 15 letters | moment-of-truth |
| Zero hour | 15 letters | pregnant-moment |
| Zero hour | 20 letters | psychological-moment |
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