Sounds like something may be using GMT/UTC time and not taking cognizance of Irish daylight saving which puts us an hour ahead of GMT/UTC right now - at least until later in October when the clocks go back. If this is in relation to an NTL receiver box then perhaps there is a daylight saving option that needs to be enabled locally?
Mrs Simeon watching Two and a Half Men at 00.08 ......... telly goes out, all dark for a minute or so. Then comes back on. Everything, including clock OK. Ahhhhh! The power of AAM!
Press the Help button on the ntl remote.
Press the Yellow button and the whole thing reloads.
I tend to do this each day, if only to get the EPG to refresh.
The clock being an hour out happens to me every now and then. At least it is consistently an hour out (i.e. the EPG start times are also wrong) so auto tune for programme recording is not affected.