•   The auction starting at 19:00 CET will have a shortened product runtime of 23 hours.•    As a result, the total number of auctions on this day will be reduced from 24 to 23.•    The first Within Day auction (start 19:00 CET) will be shortened by one hour and will end at 01:30 CET, just before the time change.•    The products of the auctions starting at 22:00 and 23:00 CET will begin after the time change, at 03:00 CEST and 04:00 CEST respectively, with the standard product end time of 06:00 CEST.