How long...?

My youngest son went to bed at the normal time tonight but it was different - by the time my partner, Claire, had come back down from settling him it was twilight...

It's hard to imagine now but crappy, cold, grey days are stealing a march on us. I give it about 11 weeks before we're all doing this again... tell me I'm being sullen and in fact we'll have an Indian summer lasting until next June.... Please?