[bitfolk] Changing system time from UTC to GMT?

Hi all, I am a recent newcomer to Bitfolk, and indeed VPS's in general, and so far good - far surpassing expectations in fact. I have been busy migrating several of my services from my home server to the new VPS and have noticed a slight difference in representation in time - the use of UTC versus GMT - in areas such as logs, application variables (Apache date-related SSI's for example). My question is, can I change the system clock from UTC to GMT and, if so, how? I am aware that I could tweak most applications (e.g. Apache's config timefmt command) however I would prefer to change this in only one place if at all possible. If this is doable, would I risk breaking anything? I've seen some mention of time synchronisation issues between the VPS and host system in previous discussions and so am conscious that this could be a dangerous area for idle tweaking. My preference for GMT/BST is largely aesthetic, and perhaps also simply what I'm used to, with a slight hint of British tradition thrown in also! Would be grateful for any advice. Regards, Mathew