The Smithsonian Institution announced Tuesday that its museums, research centers and the National Zoo will remain open through “at least” Monday if the federal government shuts down. 

In a post on the social platform X, the Smithsonian said that it will use “prior-year funds” to stay open. It will provide updates on its website. 

The Smithsonian operates 17 museums and the National Zoo in Washington, two museums in New York City and eight research centers — from an astrophysical observatory at Harvard University to a marine station in Fort Pierce, Fla. 

The Smithsonian estimated that its museums and the National Zoo had 16.8 million visits last year.

With hours remaining before the midnight deadline on Tuesday, Republicans and Democrats are far apart on reaching an agreement to avert a shutdown. 

All 53 Republicans in the Senate rejected a Democratic-backed spending proposal, which would have funded the government through October, permanently extended premium subsidies under the Affordable Care Act and restored $1 trillion in Medicaid cuts. 

The upper chamber is currently voting on a Republican-backed proposal, which was passed by the House on Sept. 19. It would extend government funding through Nov. 21. Since it needs 60 votes to advance, though, it is expected to fail. 

If the government shuts down, federal workers will not receive paychecks, although they would be paid retroactively once the government reopens. Other key government services, including Social Security benefits and disaster response, could be impacted.