Related Clues:
- Clock-watcher's wait, seemingly
- Numbers for your children?
- Makes wine better
- A very long time ... or a hint to the starts of the answers to the five starred clues
- One hundred million decades
- The Hadean was the earth's first one
- Geological division
- Scads of centuries
- Board game information
- Muddled sage grows old
- Seemingly impossible time
- Huge time unit
- DMV wait, seemingly
- Waiting room wait, seemingly
- 1,000,000,000,000,000 years, give or take