how to get common time interval in sql query

--source table
DECLARE @srcTable TABLE (MachineId INT, startTime DATETIME, endTime DATETIME)
-destination table
DECLARE @dstTable TABLE (MachineId INT, HourNo INT, startHour DATETIME, endHour DATETIME)

INSERT INTO @srcTable (MachineId, startTime, endTime)
VALUES(1, '1998-06-06 09:00:00', '1998-06-06 11:00:00'),
(2, '1998-06-06 10:00:00', '1998-06-06 12:00:00'),
(3, '1998-06-06 11:00:00', '1998-06-06 12:00:00')

--below CTE is used to split hours for each machine
;WITH MyHours AS
(
	--initial value
	SELECT MachineId, 1 As HourNo, starttime, endTime, startTime as startHour, DATEADD(hour,1,starttime) AS endHour
	FROM @srcTable
	WHERE DATEADD(hour,1,starttime)<= endTime 
	--recursive part
	UNION ALL
	SELECT MachineId, HourNo + 1 AS HourNo, starttime, endTime, endHour as startHour, DATEADD(hour,1,endHour) AS endHour
	FROM MyHours
	WHERE DATEADD(hour,1,endhour)<= endtime 
)
INSERT INTO @dstTable (MachineId, HourNo, startHour,endHour )
SELECT MachineId, HourNo, startHour,endHour 
FROM MyHours
ORDER BY MachineId, HourNo 

--uncomment below query to see results
--SELECT *
--FROM @dstTable 
--ORDER BY MachineId, HourNo 

--display all common hours
SELECT t1.MachineId AS MachineId1, t1.HourNo AS HourNo1, t2.MachineId AS MachineId2, t2.HourNo AS HourNo2, t1.startHour, t1.endHour 
FROM @dstTable AS t1 INNER JOIN @dstTable AS t2 ON t1.startHour = t2.startHour AND t1.endHour = t2.endHour AND t1.MachineId < t2.MachineId 
ORDER BY t1.MachineId, t1.HourNo 

MachineId1	HourNo1	MachineId2	HourNo2	startHour		endHour 
1		2	2		1	1998-06-06 10:00:00.000	1998-06-06 11:00:00.000
2		2	3		1	1998-06-06 11:00:00.000	1998-06-06 12:00:00.000