juliantojd

int juliantojd(int month, int day) 

Converts a Julian date to a Julian day count.

Returns:

Julian day count

Description:

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.

Version:

3+, 4+

See also:

To convert a Julian day count to a Julian calendar date:

jdtojulian() 

To convert a Julian day count to another calendar system, see the other jdto* functions.

Example:

Example 4.15 Find the Julian day count for the infamous "Ides of March"

/* 
     "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);