Today is both midsummer's eve and the first day of summer, the longest day of the year. Sunrise on Aspö is at 3:32 AM, with sunset at 10:00 PM.
We have historically been there for the holiday (as it coincides with my birthday), but since moving to Texas, we decided to visit later in the summer to give us a break from the southern heat.
There will still be lots of daylight when we're there in July. Our first weekend will have a sunrise of 3:55 AM and a sunset of 9:45 PM.
I found a great website that gives the amount of daylight anywhere in the world just by clicking on a map and typing in the date. It's kept me amused for far too long!