Visit The Interval

The Interval is a bar, cafe, museum, and the home of The Long Now Foundation.

Located in San Francisco's historic Fort Mason Center within sight of the Golden Gate Bridge and Alcatraz.

Come visit us! We are open 7 days a week.

Street Address

The Interval / The Long Now Foundation
Fort Mason Center, Bldg A
2 Marina Boulevard
San Francisco, CA 94123

Schedule Details & Important Notices

Have questions?

If you are interested in hosting an event at The Interval, take a look at our rental brochure or contact
For press inquiries, please email
For lost credit cards or other items, email