Hello,
Thank you for your suggestions. I will turn off the telephone for a few minutes and we'll see where we go from there.
I haven't written to B&O. Good idea, will try that!
When I got home last night, again the telephone was about 12 minutes slow! (Nobody else had been there during the day, other than our cats).
Yes, the problem occurred for several years.... but here are the issues:
1. The clock on the BeoCom 3 needs to be looked at in order to realize if it is OK. It is not a primary clock device, by which I mean it is not a big or bright clock such as the clock in the microwave oven which is a bright green, or the one in the BeoLab 3500, which is a bright red. These clocks you can see at a glance from across the room in any lighting conditions. As a result, in my case, it may be many days or even weeks before one realizes the clock is displaying the wrong time.
2. When I notice it and fix it, I have on ocassion irritatedly looked at it the next day, and perhaps the day after, and sometimes it has been fine! But then one day you look at it... and it is more than 10 mins slow, but usually never more than 15 mins slow, or it shows AM instead of PM. (I forgot to mention the AM/PM crazy issue on this thread, but I mentioned it on this post in July 2009)
3. There's been times, say, entire six months every time, when I have just given up and tried to ignore the problem. But then one day, I see the clock, fix it, only to see it give the wrong time not too long afterwards!
Oh well. Thanks again.