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Smithsonian National Museum of Natural History

The museum is open every day of the year except December 25. Regular hours are 10:00 AM to 5:30 PM. However, the Museum will extend its hours until 7:30 PM on certain dates. These dates are recorded in the calendar below.

Note: When extended hours have been marked as CANCELED, we will be closing at our regular time of 5:30 PM due to a special event. We apologize for the inconvenience and thank you for your patience.

The Smithsonian is using Trumba, a third party event calendar service, to set up an events calendar and event registration system. Please be advised that Trumba’s Privacy Statement applies to your use of these services. The Smithsonian Institution receives from Trumba the information that you enter into registration forms in order to be able to send you instructions or contact you with the information that you need in order to participate in the events and programs for which you register. Once the Smithsonian Institution receives this information, it is subject to the Smithsonian privacy policy which can be read at

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