Retrieve Future Timestamp Values

Dear all ,

I have these timestamp values in one table  in a database.
I need to fetch those rows are greater than the current time, fore.g
today is Friday and i need rows of sunday, monday and so on .

column A                                         Column B
"2011-10-07 09:32:51+05:30";"2011-10-07 11:30:51+05:30"
"2011-10-08 05:32:51+05:30";"2011-10-08 11:50:51+05:30"
"2011-10-08 05:32:51+05:30";"2011-10-08 11:50:51+05:30"
"2011-10-08 15:32:51+05:30";"2011-10-08 18:50:51+05:30"
"2011-10-11 08:32:51+05:30";"2011-10-08 10:50:51+05:30"
"2011-10-11 12:32:51+05:30";"2011-10-11 04:50:51+05:30"
"2011-10-09 12:32:51+05:30";"2011-10-11 13:50:51+05:30"
"2011-10-13 12:32:51+05:30";"2011-10-13 13:50:51+05:30"
"2011-10-15 12:32:51+05:30";"2011-10-15 13:50:51+05:30"
"2011-10-25 12:32:51+05:30";"2011-10-26 13:50:51+05:30"

I want that rows whose value is in future data and time.

Please let me know how to query on comparing timestamp values to
retrieve rows of future date


Thanks