(<=> (Before ?Time-Range-1 ?Time-Range-2)
(< (End-Time-Of ?Time-Range-1) (Start-Time-Of ?Time-Range-2)))
(<=> (After ?Time-Range-1 ?Time-Range-2)
(< (End-Time-Of ?Time-Range-2) (Start-Time-Of ?Time-Range-1)))
(<=> (Meets ?Time-Range-1 ?Time-Range-2)
(Equals (End-Time-Of ?Time-Range-1)
(Start-Time-Of ?Time-Range-2)))
(<=> (During ?Time-Range-1 ?Time-Range-2)
(And (> (Start-Time-Of ?Time-Range-1)
(Start-Time-Of ?Time-Range-2))
(< (End-Time-Of ?Time-Range-1) (End-Time-Of ?Time-Range-2))))
(<=> (Overlaps ?Time-Range-1 ?Time-Range-2)
(And (< (Start-Time-Of ?Time-Range-1)
(Start-Time-Of ?Time-Range-2))
(< (Start-Time-Of ?Time-Range-2)
(End-Time-Of ?Time-Range-1))
(< (End-Time-Of ?Time-Range-1) (End-Time-Of ?Time-Range-2))))