I shall say that GMT is the main timezone, and do all the others in relation for that. I shall also provide an example of what the time is in other timezones at 12noon GMT.
PDT (West Coast US) - GMT-7 - 5am
EDT (East Coast US) - GMT-4 - 8am
GMT - GMT+0 - 12noon
BST (UK time) - GMT+1 - 1pm
CEST (Central Europe, France & Germany etc) - GMT+2 - 2pm
I shall try my best to update this list when there are changes such as summer time, and if anyone wants to add any to this list please give me the details and I shall do so
