Returns the day of the year, in range (1..366):
Date.new(2001, 2, 3).yday # => 34
Returns:
5317 5318 5319 5320 5321 5322
# File 'date_core.c', line 5317 static VALUE d_lite_yday(VALUE self) { get_d1(self); return INT2FIX(m_yday(dat)); }