I know I shouldn't have to, because the time is read straight from the Greenwich Time Signal but, despite changing the batterty and several re-starts it insists on running exactly 4 hours slow.

David White, November 2008

hiya you could try placing it in a different place where it might get a better signal

tonyboy, March 2009

Hi David

I was having precisely the same problem with a London Clock in the autumn. Now it doesn't run four hours slow it just roams and roams like it can't find the time signal.
I am going to try some of the suggestions from the National Physics Laboratory who are responsible for the time signal now Greenwich has shut:
http://www.npl.co.uk/server.php?show=ConWebDoc.1002

Watch this space!

Drizzle, December 2008