You are here: Home USNO Astronomical Applications Data Services Phases of the Moon
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.
 

Phases of the Moon

Our data services have moved here. Please update your bookmarks.

USNO Master Clock Time
Javascript must be Enabled