Current Zoo Hours
Grounds Open: 8 a.m. to 4 p.m.; last admittance is at 3 p.m.
Exhibit Buildings Open: 9 a.m. to 4 p.m. (winter) / 6 p.m. (summer)
Please note: last admittance to exhibit buildings is 30 minutes before closing.
The Zoo is open every day, except Dec. 25.
Winter hours begin Sept. 15: 8 a.m. to 4 p.m.; last admittance at 3 p.m.
Summer hours begin March 15: 8 a.m. to 6 p.m.; last admittance is at 5 p.m.
Know Before You Go
The Zoo is free to visit, but entry passes are required for all guests, including infants.
The Smithsonian is implementing COVID-19 safety measures based on guidance from the CDC and local governments. See the Safety and Park Rules page for more information.