Related Clues:
- Millions of millennia
- It's a long time
- Very long period
- Mountains have developed over them
- Long time to wait
- Immense time span
- Length of a boring class, so it seems
- Christmas almost set up in plenty of time
- Principals in Eugene Onegin not singing for ages
- Trotsky missed out on Liberal period
- Clear speaking
- Individual cycling round a long time
- Take time out of school period
- In time, long division ends in 127
- Age of person experiencing upsurge in energy