Table:
text: 2008–09 Cypriot First Division
Managerial changes
Managerial changes
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment
Enosis Marios Constantinou Resigned 7 December 2008 Panayiotis Xiourouppas 8 December 2008
Alki Christos Kassianos Resigned 17 December 2008 Panayiotis Xiourouppas 7 January 2009
AEK Loizos Stefani Mutual consent 18 December 2008 Christos Kassianos 18 December 2008
Enosis Panayiotis Xiourouppas Mutual consent 29 December 2008 Eduard Eranosyan 30 December 2008
AEK Christos Kassianos Resigned 15 January 2009 Savvas Constantinou 15 January 2009
AEL Andreas Michaelides Mutual consent 26 January 2009 Mihai Stoichiţă 27 January 2009
Enosis Eduard Eranosyan Resigned 28 January 2009 Adamos Adamou & Antonis Kleftis 29 January 2009
Omonia Nedim Tutić Sacked 16 March 2009 Takis Lemonis 17 March 2009

text: 2008–09 Cypriot First Division
Managerial changes
Managerial changes
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment
Omonia Giorgos Savvidis Resigned 4 March 2008 Nedim Tutić 4 March 2008
Apollon Yossi Mizrahi Mutual consent 11 May 2008 Svetozar Šapurić 23 May 2008
Ethnikos Svetozar Šapurić Mutual consent 23 May 2008 Stéphane Demol 24 May 2008
Apollon Svetozar Šapurić Sacked 9 September 2008 Thomas von Heesen 15 September 2008
AEK Nir Klinger Sacked 27 October 2008 Makis Katsavakis 28 October 2008
AEP Savvas Constantinou Resigned 3 November 2008 Nir Klinger 5 November 2008
APOP Eduard Eranosyan Sacked 27 November 2008 Giorgos Polyviou 27 November 2008
AEK Makis Katsavakis Resigned 2 December 2008 Loizos Stefani 2 December 2008

Question: What was the appointment date of Christos Kassianos, who belonged to AEK in 2008-2009, during the Cypriot First Division coaching change?