It was 10.30 pm. The sun was almost at its' lowest point, soon to get up again. Jökulsárlón is still about 400km away from the Arctic circle, so the sun does go under, but it never really gets dark in summer. You can still perfectly read the newspaper.
Images June 2009, Olympus E-30 + Zuiko 11-22, f/8, 1/180s, ISO 400 (why did I put it on ISO 400? )