yday()
public
Returns an integer representing the day of the
year, 1..366.
t = Time .now #=> 2007年11月19日 08:32:31 -0600
t.yday #=> 323
static VALUE
time_yday(VALUE time)
{
struct time_object *tobj;
GetTimeval(time, tobj);
MAKE_TM(time, tobj);
return INT2FIX(tobj->vtm.yday);
}