This information is based on the calendar put into use by Pope Gregor XIII on October 15 of A.D. 1582.  It can handle any year from 1583 through A.D. 3999.  You might find reading Gregorian Calendar as interesting as I did.

Please enter the year and month that you would like to see.  The year may be entered as only two digits for 1970 to 2069, and you can get the calendar pages for the entire year by entering just the year.  The default is the current month.  Begin with a capital letter "J" for Julean days.

as yyyy/mm.  Use Jyyyy/mm for Julean.

 

Information is available at the U.S. Naval Observatory for sunrise/sunset times, lunar phases, and positions of solar system objects.