Create a new #GDate representing the given Julian date.
The julian_day you pass in must be valid. Use glib.date.Date.validJulian if needed to validate it. The returned #GDate is guaranteed to be non-null and valid.
days since January 1, Year 1
a newly-allocated #GDate initialized with julian_day
Create a new #GDate representing the given Julian date.
The julian_day you pass in must be valid. Use glib.date.Date.validJulian if needed to validate it. The returned #GDate is guaranteed to be non-null and valid.