Ceremonies have been held across the UK and Ireland to mark the winter solstice. December 21 is the shortest day and longest night of the year, with London experiencing seven hours and 49 minutes ...

Now, the winter solstice, Saturday ... including Newgrange in Ireland. Solstices are often associated with pagan religions ...

The exact moment of the winter solstice varies from year to year due to a slight misalignment between the Gregorian calendar and the actual rate of the Earth’s rotation around the sun.