This Saturday everybody in Britain will be putting their clocks back by one hour in an almost medieval ritual that causes road accidents, misery, economic retardation and, apparently, obesity.
I also blame it for many of Britain's other evils, including crime, animal cruelty, reggae, religion, hooliganism, teenage pregnancy and BBC3.
Click here for a column explaining things in slightly more sane terms. I agree with it all and I get pretty angry every year when we're forced to put the clocks back.
In fact it's one of the few things that gets me angry. Speed bumps and the BBC are the only other two I can think of at the moment. I'm sure more will come to me.
And now I'll have long dark evenings to consider them all.