Adding to Time in Date fields

I would like to add a certain number of minutes to a time value stored in an Oracle Date field.

Is there an Oracle function to allow me to add the minutes to the field so that the other members of the Date field "day, hour, minutes" will reflect the change?

So if I were to add 20 minutes to "December 2, 1996 12:50AM" the resulting Oracle field would be "December 3, 1996 1:10AM"

									Thanks,
									Marc Waldman
									marc_at_popmail.med.nyu.edu