The tie at the Coral Windows Stadium will kick off at 12:45pm.
The last-eight match will also be broadcast live on BT Sport. The club will receive £247,500 as a result of the match being televised.
Ticket details for the Reading tie will be confirmed in due course.
A new date for City's Sky Bet League 1 fixture with Chesterfield - originally scheduled for Saturday 7 March 2015 - will also be announced in due course.