Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
Date#amjd
d.amjd → rational
ext/date/date_core.c
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static VALUE
d_lite_amjd(VALUE self)
{
get_d1(self);
return m_amjd(dat);
}
Returns the astronomical modified Julian day number. This is a fractional number, which is not adjusted by the offset.
Example
DateTime.new(2001,2,3,4,5,6,'+7').amjd #=> (249325817/4800) DateTime.new(2001,2,2,14,5,6,'-7').amjd #=> (249325817/4800)