Also to improve safety for elderly nocturnal sleigh-drivers, with less snow on roofs. However one S Claus [an Eastern-European immigrant worker if ever there was one] has whinged that safety will actally be worse since the shorter hours of darkness will require faster travel.
Worker elves have also complained, fearing that they will lose their long summer holidays and will only be given leave during the cold winter months.
However opinion polls have supported the proposed move, which many people support because it would avoid them having to do their Christmas shopping at a time of year when shops were always crowded. It was also accepted without question that trivial religious festivals should always be re-arranged if necessary to fit in with crucial, fundamentally important matters for the human race like TV schedules and games of Soccer.