Question : Covert DateTime to time only Excell 2003

Hi
i have a colum of mixed data
some is in time format only some cells however includes a date as well.
i would like to strip out the the date part and have just the time portion remaining.
i hope to then sort the colum on time.
Thanks for your help
Pete

Answer : Covert DateTime to time only Excell 2003

SELECT
      SUM(CASE WHEN TRANSMONTH='MAY-2010' THEN BALANCEAMOUNT END)
      -SUM(CASE WHEN TRANSMONTH<>'MAY-2010' THEN RECEIPTAMOUNT END)
FROM MONTHLYBILL A
WHERE TRANSMONTH IN ('MAY-2010','JUNE-2010','JULY-2010')
  AND MEMBERACCNO='B-100'