Most stores in Berlin open from 10am until 8pm Monday to Thursday. On Fridays and Saturdays, some of the largest shops stay open until later. In Berlin, shops normally close on Sundays.
Museum opening times vary greatly depending on the season and on the various museums, but most open Tuesday to Sunday, from 10am to 6pm. On Thursdays, some institutions are open until 10pm.
Most museums in Berlin remain closed on Monday.