Changing your system clock
 

Changing the time on your system

Twice a year the clocks change between British Summer Time and Greenwich Mean Time. Your telephone system clock may need to be changed at these times. You can find instructions on how to update the time on a wide range of telephone systems listed below.

Year BST Begins
(clocks 1hr forward)		 GMT Begins
(clocks 1hr backwards)

2007

 March 25th October 28th

2008

 March 30th October 26th

2009

 March 28th October 31st