Related Clues:
- Oodles of time
- Incredibly long time
- Proterozoic or Archeozoic, e.g.
- Period of many years
- Extremely long time
- String of periods
- ... and another
- Very, very long time
- Waiting time at the motor vehicle bureau, seemingly
- Considerable stretch
- A looooong time
- Forever, facetiously
- 1 billion years
- 365 billion days, astronomically
- Interminable stretch