End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Time#<=>
time <=> other_time → -1, 0, +1, or nil
time.c
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static VALUE
time_cmp(VALUE time1, VALUE time2)
{
struct time_object *tobj1, *tobj2;
int n;
GetTimeval(time1, tobj1);
if (IsTimeval(time2)) {
GetTimeval(time2, tobj2);
n = wcmp(tobj1->timew, tobj2->timew);
}
else {
return rb_invcmp(time1, time2);
}
if (n == 0) return INT2FIX(0);
if (n > 0) return INT2FIX(1);
return INT2FIX(-1);
}
Compares time with other_time.
-1, 0, +1 or nil depending on whether time is less than, equal to, or greater than other_time.
nil is returned if the two values are incomparable.
Example
t = Time.now #=> 2007-11-19 08:12:12 -0600 t2 = t + 2592000 #=> 2007-12-19 08:12:12 -0600 t <=> t2 #=> -1 t2 <=> t #=> 1 t = Time.now #=> 2007-11-19 08:13:38 -0600 t2 = t + 0.1 #=> 2007-11-19 08:13:38 -0600 t.nsec #=> 98222999 t2.nsec #=> 198222999 t <=> t2 #=> -1 t2 <=> t #=> 1 t <=> t #=> 0