What are my rights when my (international) train is delayed 2,5 hours?

If you are told you will arrive at your final destination with a delay of 2,5 hour, you are entitled to cancel your travel plans and request an immediate refund of the cost of your ticket. You may also be entitled to a return journey to your initial departure point. Further you should be provided with meals and refreshments (proportionate to the waiting time) and for accommodation – if you have to stay overnight.