Time Zone does not change

Hi All,

My IDES server( ECC 6.0 EHP 7 with MAXDB 7.9 build 23) shows time zone of CET, i changed the time zone using the tcode STZAC and then took a restart of the system, still the time zone remains CET, please let me know how do i resolve this.

Regards

Mrigank Aditya