The northern part of Norway is above the arctic circle where the "midnight sun" exists. This would enable someone to observe the Venus Transit in its entirety if weather conditions were favorable. Current conditions at Tromso appear to be such that some observations may be possible. Its time zone is CEST or UTC + 2 hrs.
MICA gives the following details for the transit there on Wednesday, Jun 6th for the first part of the day.
Supplemental (Jun 4): The transit will start just after midnight CEST and the Sun will be towards the north at that time.