Rappelz announced the game will wind up the closed beta on Tuesday September 26th at 9 PM (21:00) USA Pacific Time, and Rappelz is going into open beta on Monday October 2nd at 1 PM (13:00) USA Pacific Time.

Rappelz Closed Beta is scheduled to end on Tuesday September 26th at 9 PM (21:00) USA Pacific Time.

That is:

Los Angeles 9PM (21:00) Tuesday
Denver 10PM (22:00) Tuesday
Chicago 11PM (23:00) Tuesday
New York 12AM (00:00) Wednesday
London 5AM (05:00) Wednesday
Rome 6AM (06:00) Wednesday
Istanbul 7AM (07:00) Wednesday
Moscow 8AM (08:00) Wednesday
Sydney 2PM (14:00) Wednesday

Rappelz Open Beta is scheduled to begin on Monday October 2nd at 1 PM (13:00) USA Pacific Time.

That is:

Los Angeles 1PM (13:00) Monday
Denver 2PM (14:00) Monday
Chicago 3PM (15:00) Monday
New York 4PM (16:00) Monday
London 9PM (21:00) Monday
Rome 10PM (22:00) Monday
Istanbul 11PM (23:00) Monday
Moscow 12AM (00:00) Tuesday
Sydney 6AM (06:00) Tuesday