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instance method

Date#ld

ld → integer

static VALUE
d_lite_ld(VALUE self)
{
    get_d1(self);
    return f_sub(m_real_local_jd(dat), INT2FIX(2299160));
}

Returns the Lilian day number, which is the number of days since the beginning of the Gregorian calendar, October 15, 1582.

Example

Date.new(2001, 2, 3).ld # => 152784

See also #julian? #leap? #julian #mday also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0