Updated on July 16, 2021 at 9:30 pm NBCUniversal Media, LLC Timed-entry passes will not be required to enter most Smithsonian museums starting Tuesday, according to the Smithsonian. The museums located on National Mall will return to their pre-pandemic schedule. Most of the museums opened at 10 a.m. and closed at 5:30 p.m. Our redesigned local news and weather app is live! Download it foriOS or Android — and sign up for alerts. Visiting update: Starting Tuesday, July 20, we will no longer use timed-entry passes at most museums. Passes will still be required to visit our @NMAAHC, @NationalZoo and @cooperhewitt. The timed-entry passes were part of the Smithsonian reopening plan during the pandemic.