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Julian Date Converter

Convert from calendar date and time to Julian date, and vice versa.
Enter either a Calendar date, or a Julian date and click Calculate.

Common Era (A.D.) B.C.E. Universal Time
Year Month Day Hr. Min. Sec.
Julian Date Weekday
Calendar date to Julian date
Julian date to Calendar date

This calculator was taken from the U.S. Naval Observatory
and slightly modified.