Here is the announcement. Looks like GMT . So it will be 9th in UK but start of trading on 10th here.
November 25, 2014 at 09:15 AM GMT THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES COUNTRY CODE AU SECURITY NAME MEDIBANK PRIVATE STANDARD ADDED LARGE CAP - MID CAP ADDED ASIA APEX 50 - TYPE OF EVENT INITIAL PUBLIC OFFERING EFFECTIVE DATE 09-Dec-2014 THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES End of announcement. Further announcements may occur as needed.
