(PHP 4, PHP 5, PHP 7)
jdtounix — Convert Julian Day to Unix timestamp
$jday
)
This function will return a Unix timestamp corresponding to the
Julian Day given in jday or FALSE if
jday is not inside the Unix epoch
(Gregorian years between 1970 and 2037 or 2440588 <=
jday <= 2465342 ). The time returned is
UTC.
jdayA julian day number between 2440588 and 2465342.
The unix timestamp for the start (midnight, not noon) of the given Julian day.