We currently run Remote Desktop Services (windows 2008 R2 SP1) and we have Linux based thin clients, rdesktop version we have running is 1.8.2 and 1.8.3. When connecting to the an RDS server with time redirection active. on the client side it says "Your current time zone is not recognized. Please select a valid time zone using the link below (see attached file). Client time zone is "America/New York", Server is "(UTC-05:00) Eastern Time (US & Canada)".
Outlook client see TZ as "(UTC-05:00) Bogota, Lima, Quito Rio Branco" which causes the calendar entry an hour off.
Tested this on Fedora 21 and Ubuntu 14.04 with rdesktop 1.8.2 and 1.8.3 with the same result.