United States Naval Observatory
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CLOSED NOW - Opens at 9:00am

3450 Massachusetts Ave NW, Washington, DC 20392

Hours

Regular Hours

Mon - Fri:	9:00 am - 5:00 pm

Extra Phones

Primary Phone: 202-762-1401

Payment method

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AKA

US Naval Observatory

Other Links

http://www.usno.navy.mil/USNO

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