Generally when a server is setup, the time set on the server is as per the timezone of the area where the datacentre is located. But for a web hosting uk server the clients are spread all over the world with different timezones. I will recommend to set the the UTC timezone.
The files related to various timezones are located at /usr/share/zoneinfo on the server. To set the timezone to UTC:
Edit the file
# vi /etc/sysconfig/clock
change the line ‘UTC=false’ to ‘UTC=true’.
Now set the local timezone to UTC
# ln -s /usr/share/zoneinfo/UTC /etc/localtime
Check the time by
The above was an example to set the timezone to UTC. You can create symlink for any timezone by using above method to set your desired timezone.