The winter solstice, marking the shortest day and longest night of the year, happens just after 3pm on Sunday.

Newgrange is a prehistoric monument thought to have been built by the Neolithics over 5,000 years ago

Some of Ireland’s most ancient sites including Navan Fort in Co Armagh and Newgrange in Co Meath hosted gatherings.

Every year the clocks go back an hour at 2am on the last Sunday of October