All departures and arrivals of flights are mentioned on your ticket within the slot provided for this purpose. They are part of the contract between the company and the passenger. On the other hand, schedule guides published by most airlines, airports, tour operators or Internet servers only indicative. In principle, a change of flight schedules after purchasing the ticket will (or should be) always be indicated by mail or telephone by the booking department of the carrier or the travel agency.
As a precaution, the day before you,find out to see if the flight you shallbe taking shall still keep the same times.
In principle, only a time delay (determined by reference to the nature or duration of the flight) will be considered.
In addition, security concerns always take precedence over respect for punctuality, and delay due to unforeseen technical problems or weather condition in principle not give room for compensation.
In any case, you may obtain damage only if you demonstrate that you have suffered loss because of such delay.
If you have not yet started your journey, and the proposed new schedule does not suit you, you are entitled to reimbursement without penalty of your ticket the change is proposed by the carrier.