Table:
text: 2012 Champions League Twenty20
Teams
Qualified teams
Team Domestic_tournament Position_ Appearance Qualified_
Auckland Aces Qualifying stage Pool 1 winners 2nd 10 October 2012
Yorkshire Carnegie Qualifying stage Pool 2 winners 1st 10 October 2012

Question: On what date did the Auckland Aces and Yorkshire Carnegie qualify for the 2012 Champions League Twenty20?