Hi Rich,
Thank you for your quick reply and advise. Changing TZ through command prompt works fine for example using "export TZ=UTC" however, using a the script does not change it. Changing both /etc/timezone and/or /etc/localtime files require a reboot to take effect I have played around a bit with using extlinux.conf tz=xxxx and this creates the TZ environment variable and the etc/timezone file. I have also created the TZ through a script in the profile.d which creates the TZ environment variable with no problems (which shifts TZ from sys cmd to the user environment).Once TZ variable is created wanting to change it through a script is the sticking point, it works fine when changing through command prompt. If i can overcome this problem then changing timezone without rebooting becomes possible. Would be nice to add to TC but unfortunately this my not be able to be achieved.