Sections

Home
Time
Earth Orientation
Astronomy
Meteorology
Oceanography
Ice

You are here: Home

The USNO websites aa.usno.navy.mil, ad.usno.navy.mil, aristarchus.usno.navy.mil, maia.usno.navy.mil, rorf.usno.navy.mil, and toshi.usno.navy.mil are undergoing modernization efforts. The expected completion of the work and the estimated return of service is Summer 2020.

USNO

Contact form

Fill in this form to contact the site owners.

Name

Please enter your full name

E-Mail (Required)

Please enter your e-mail address

Subject (Required)

Message (Required)

Please enter the message you want to send.

USNO Master Clock Time: Javascript must be Enabled

The Sky This Week: The Sky This Week, 2020 May 26 - June 2; More…

Tropical Warning Information: Click here to go to Joint Typhoon Warning Center new site for North-West Pacific Ocean, South Pacific Ocean, and Indian Ocean Tropical Cyclone Warnings

Fleet Weather Center Norfolk Virginia Tropical Warning Information: Click here to go to Fleet Weather Center Norfolk new site for Atlantic Tropical Warnings

This is an official U.S. Navy web site.
Security & Privacy Policy
Veterans Crisis Line