What does “original start time” mean when it comes to the modification and cancellation policy?

It refers to the start time that you entered when you first made your reservation, or the earliest-ever start time registered in our system for this trip.

This precision is important because it is not possible to shift the start time of a reservation yourself, to shorten it or to cancel it, once the “original start time” of your reservation has passed. To do this, you must call us.