Creo que seria algo asi:
Código PHP:
//
SELECT *
FROM
(SELECT campoDate,campoTime,campoTime2 FROM tabla GROUP BY campoDate, campoTime, campoTime HAVING COUNT(*)>1) as tabla2, tabla
WHERE
tabla2.campoDate=tabla.campoDate AND tabla2.campoTime=tabla.campoTime AND tabla2.campoTime2=tabla.campoTime2
cya