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Hours

Admission is free!
The Smithsonian's National Zoo is open every day of the year except Dec. 25.

ZooLights Hours (Nov. 25 through Jan. 1)

Grounds: 8 a.m. to 9 p.m. 
Exhibit Buildings: 9 a.m. to 4 p.m.  (Amazonia and Bird House open at 10 a.m. all year. The Small Mammal House, Reptile Discovery Center and Think Tank are open during ZooLights.)
Dining & Shopping: 9 a.m. to 9 p.m.
Visitor Center: 9 a.m. to 9 p.m.

Traditional Winter Hours

Grounds: 8 a.m. to 7 p.m. (last admittance 6 p.m.) | 5 p.m. closing in winter* (last admittance 4 p.m.)
Exhibit Buildings: 9 a.m. to 6 p.m. | 4 p.m. closing in winter* (Amazonia and Bird House open at 10 a.m. all year)
Dining & Shopping: 9 a.m. to 5 p.m. | 10 a.m. to 4 p.m. in winter* 
Visitor Center: 9 a.m. to 6 p.m. | 4 p.m. closing in winter*

*Winter hours begin October 1 and run through March 14. Exact dates may vary each year. Please check back for updates.