APS buildings are open to staff and invited visitors. The Library is under renovation until early 2022. Virtual programs are ongoing. Read more about the APS's COVID response and operating procedures.

APS Holiday Hours

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The American Philosophical Society offices and library will be closed Saturday December 23 through Monday January 1, 2018. The Society will re-open for normal business hours on January 2, 2018.

The exhibition Curious Revolutionaries: The Peales of Philadelphia will be open 10:00 a.m. - 4:00 p.m. at the APS Museum (104 South Fifth Street) on:

- Thursday, December 21 - Saturday, December 23 

- Thursday, December 28 - Saturday, December 30 

Saturday, December 30 will be the last day to view the current exhibition.

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American Philosophical Society