Exchange Time Zone is not correct when sending a meeting request

Hello,

Please we are facing a problem after we installed (Egypt Ramadan DST changes2014 ) hot fix,

http://support.microsoft.com/kb/2967990

Our servers and computers timezone updated successfully, but when we schedule any meeting from outlook with any user in any different time zone, the attendee receives the meeting request with delay one hour as the below Example:

Example:

Time for the meeting:                                1:00 P.M. Cairo time zone
                                   ------------
Attendee receives the meeting request:   2:00 P.M.

Would you please help us in this issue.

Thanks