If the sun shines on the London Olympics athletes will not have to worry about being woken up early by its rays thanks to blackout curtains installed in every apartment in the Games village.
Triple jumper Olsson was almost half a metre better than second-placed Nathan Douglas of Britain with a leap of 17.67, the best in Europe this year, at the European Athletics championships.
The Briton jumped twice before retiring to the side of the track.
Last year the Swede won six of his eight indoor competitions and all 15 outdoors.
Christian Taylor of the United States retained his Olympic men's triple jump title on Tuesday, recording the longest jump of the year to claim the podium top spot.
A summary of sports events and sports persons, who made news on Wednesday
Justin Gatlin blasted out a warning that he is ready to challenge Usain Bolt's 100 metres hegemony when he stormed to a lifetime best 9.74 seconds to win the event in the opening Diamond League meeting of the season on Friday.
Brief profile of five male athletes to watch out for at the August 22-30 world championships in Beijing.
A summary of Thursday's events at the World Athletics Championships.