@rvdborgt I'm not so sure, I had a conversation with their customer support about it that I added as EDITs. Anyways, there's not much more I can do about it!
I found this thread while trying to figure this out (after reading the statement on the Caledonian Sleeper website). I’ll contact the Interrail customer support to get to the bottom of the story - the staff onboard of the train did look at the date of the pass… (which was set to the day of departure).EDIT: I contacted the Caledonian Sleeper customer service and here’s their answerThe date on the pass must be dated for arrival, but the room supplement would be bought for the date you leave the station - they don't have to have the same date Britrail / Inter-Rail / Eurail / FIP Coupons will need to be valid on the date you arrive in your destination but not necessarily on the date you join the train for departures before midnight.It looks like it’s not even related to the timezone issue. Next step is to make sure this is mentioned on the Interrail website, I guess?EDIT2: more information that seems to explain why they chose this (to be more customer friendly)We wouldn't challenge a pass
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