Tommi,
Summer danish time is UTC+2
http://www.timeanddate.com/time/zone/denmark/copenhagen
[19:00 +1] – [12:15 +2] = [07:45]
It looks like when you requested the regatta page the system failed to get timezone info and used time offset from your computer (which was UTC+1 at the time).
I’ve updated all the events to UTC+2. Please check if everything looks good now.
Although, we are still to find the root cause of the issue.