It wasn't just BA's web site. The information screens at Schiphol last night were also showing it as delayed from 2045, in their case to 2130 - but that's not surprising as once a flight is delayed, the screens at Schiphol typically show expected boarding time not departure.

There were a lot of very confused passengers asking the gate staff if they had come to the right gate because of the time difference between what they'd booked and what it said on the information screen.