Seoul Museum of Art's Seosomun main branch stays open until 21:00 every Friday, starting at 10:00. It opens 10:00–20:00 Tuesday to Thursday, and on weekends and public holidays 10:00–19:00 from March through October or 10:00–18:00 from November through February. Last entry is one hour before closing. Regular admission is free, but some special exhibitions require tickets.
Parking is open 09:00–22:00 Tuesday to Friday and 09:00–21:00 on Mondays, weekends and public holidays. Rates are KRW 400 per five minutes on weekdays and KRW 300 on Saturdays and public holidays. The car park is small, and vehicles with more than 12 seats cannot park. Public transit via City Hall Station Exit 1 on Line 1 or Exit 10 on Line 2 may be preferable.