how to subtract a time in SQL server

how i subtract a time(hours & minuts) like
i have a time1 09:00 AM and time2 11:30 AM the differance is 2:30 hours
i use DateDiff(hh,time1,time2) they return 2 only but i need hours witt minuts like (2:30)
how i use a Query for this prblum
i use this query in asp.net

please help me .
ISKPatelAsked:
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nigelrivettConnect With a Mentor Commented:
time2 - time1 will do it if they are both datetimes.
If not you can convert
convert(datetime,time2) - convert(datetime,time1)
then format the result maybe?
convert(varchar(5),convert(datetime,time2) - convert(datetime,time1),108)

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paeloCommented:
Try:

SELECT CONVERT(varchar,+DATEDIFF(hh,time1,time2))+':'+CONVERT(varchar,DATEDIFF(n,time1,time2)) As TimeDiff
FROM yourtable

-Paul.
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ISKPatelAuthor Commented:
Tahanks nigelrivett

my problum in sloved
thanks again

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