On 02/02/2021 09:48, NY wrote:


I'm not sure how good the frequency regulation was, but we were warned
by the electricity company that mains-powered clocks might not be as
accurate while our power was coming from the generators.

Oh, it won't be. Our bit of our housing estate spent about 10 days on a
genny. The clocks gained about 90 seconds a day, after the first week
our two lads noticed they were arriving* early at school :-)