JulianToJD
(PHP 3, PHP 4 )
JulianToJD -- Converts a Julian Calendar date to Julian
Day Count
Description
int juliantojd ( int month, int day, int year)
Valid Range for Julian Calendar 4713 B.C. to 9999 A.D.
Although this function can handle dates all the way back
to 4713 B.C., such use may not be meaningful. The calendar
was created in 46 B.C., but the details did not stabilize
until at least 8 A.D., and perhaps as late at the 4th century.
Also, the beginning of a year varied from one culture to
another - not all accepted January as the first month.
Caution
Remember, the current calendar system being used worldwide
is the Gregorian calendar. gregoriantojd() can be used to
convert such dates to their Julian Day count.
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