That is what Tallink Silja writes in a press release.
The timetable which is valid from March 20-22 is a departure from Turku at 20.30 with arrival at Långnäs 02.50 and arrival at Kapellskär 07.00, and a departure from Kapellskär at 20.30 with arrival at Långnäs 01.40 and arrival at Turku at 08.00.
On Monday, Tallink Silja Will present more information about traffic on the Turku-Åland-Stockholm route.