Solve problems involving converting between units of time

1. Happy Birthday 4 - hours in 11 years and 6 months
2. Great Southern Land 2 - Australian time zones, daylight savings
3. Turning The Tables of Time 1 - writing time in words, 24 hour time and 12 hour time
4. Endless Time 7 - Australian time zones
5. Great Southern Land 5 - Australian time zones, daylight savings
6. Great Southern Land 4 - Australian time zones
7. Great Southern Land 3 - Australian time zones, daylight savings
8. Surprise! - write 18:10 in 12 hour time
9. Pearly Whites - 7:00pm in 24 hour time
10. Time Travels 4 - time zone calculations
11. Time Travels 3 - time zone calculations
12. Turning The Tables of Time 3 - writing time in words, 24 hour time and 12 hour time
13. Turning The Tables of Time 2 - writing time in words, 24 hour time and 12 hour time
14. A World Of Difference 4 - international time zones
15. A World Of Difference 3 - international time zones
16. A World Of Difference 2 - international time zones
17. A World Of Difference 1 - international time zones
18. A World Of Difference 5 - international time zones
19. Gaps 'R' Gone - writing time in words, 24 hour time and 12 hour time
20. Time: Olympic Time
21. Time zones-Rushin' in Russia
22. Time zones: Last minute from Lisbon
23. Time zones: Roaming from Rome
24. Time zones: Late for a ball in Vienna