I'm travelling by train on a weekday later this month (October 2012) from Copenhagen to Hamburg. I thought there was a direct ICE Diesel Unit only taking 4-1/2 hours? However, for a weekday (Tuesday/Wednesday) there are only trains taking 5-3/4 hours via the Great Belt and changing from DSB to DB at Flensburg alternatively, via the Rodby-Puttgarden Ferry taking 5-1/4 hours, with 2 changes of train. For some reason, the aforementioned ICE non-stop only runs on Saturdays and Sundays. Anyone here know the reason? I would have thought a weekday service would be an attractive proposition?