As we all well know, the winter solstice, the shortest day of the year is usually a couple of days before Xmas, so you'd expect the sun to rise later and set earlier every day until the solstice; and then to start rising earlier and setting later every day thereafter.
That turns out to be not quite true. According to this fine article, the earliest sunset is much earlier - around 13 December, and the latest sunrise is much later - 6 January. It's just that until the winter solstice, you are losing more in the morning than you gain in the evening; and thereafter you are losing less in the morning that you are gaining in the evening.
We live and learn. I'm sure that'll come in handy in a pub quiz one day.
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