End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Date#amjd

d.amjd → rational

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)

See also #ajd #asctime #>> #as_json also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0