How to change time zone in CentOS/RedHat Linux?
There is a symbolic link in /etc which links to a file in /usr/share/zoneinfo directory.
First, make a backup of the existing localtime file. It’s always good practice to make backups of original config files.
mv /etc/localtime /etc/localtime.bak
Next, create the link:
ln -s /usr/share/zoneinfo/Europe/Bratislava /etc/localtime