| Answer | Crossword Clue |
|---|---|
| ERAS | Historic time spans |
| ERAS | Historic spans |
| ERAS | Historic spans of years. |
| EONS | Time spans |
| YEARS | Time spans |
| ERAS | Time spans. |
| ERAS | Time spans |
| YRS | Time spans: Abbr. |
| EONS | Great time spans |
| HRS | Time spans: Abbr. |
| EONS | Immense time spans |
| EONS | Geologic time spans |
| ERAS | Certain time spans |
| ERAS | Geological time spans |
| ERAS | Significant time spans |
| ERAS | Distinct time spans |
| ERAS | Spans of time |
| EONS | Long, long time spans |
| EONS | Mind-boggling time spans |
| ERAS | Memorable spans of time |
| EURASIA | It spans 12 time zones |
| ASIA | It spans 11 time zones |
| RUSS | It spans nine time zones: Abbr. |
