 GEOG: When the Vogons are about to destroy the Earth, the shot pans  back to outer space, showing the multitude of Vogon ships around the  world. The way the Earth is positioned, the morning terminator  (separation between night and morning) is just off the coast of  Africa, which would mean the time in England was about 2 hours after  dawn. However, its stated that the scenes preceding the destruction  happened at lunchtime.