How far in advance can you buy train tickets?

Related questions

1. Can you buy train tickets online?
2. Is it possible to change a train ticket?
3. How much does it cost to change a train ticket?
4. Can I use my train ticket on a later train?
5. What happens if you get on the train without a ticket?
6. What's the longest train?
7. Is TGV The fastest train?
8. Are TGV tickets refundable?
9. How far in advance are train tickets released?
10. Can you buy TGV tickets at the station?

Tags

1. #begin
2. #availability
3. #journey
4. #generally
5. #appear
6. #tickets
7. #advance
8. #preferred
9. #earlier
10. #travel
11. #choose
12. #weeks
13. #confirmed
14. #available
15. #retailer
16. #before
17. #train
18. #planner
19. #details
20. #times