juliantojd() converts from a Julian calendar-formatted date to a Julian day count. The range covered is huge, from 4713 B.C. to 9999 A.D.
To convert a Julian day count to a Julian calendar date:
To convert a Julian day count to another calendar system:
See the other jdto*() functions
/* "Beware the ides of March.", Act i, Scene 2, Julius Caesar by W. Shakespeare Notes: The Ides of March occur on the 15th of the month. Also, month lengths in the Julian calendar did not stabilize until 8 AD, so our Julian day count may be off by a wee bit. :) */ echo juliantojd (3, 15, -44);
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