The UK marked the beginning of 2024 with fireworks, street parties and a message of inclusivity as people celebrated across Britain.
As Big Ben struck midnight drones lit up the London sky with the message "London, a place for everyone", before a vibrant firework display began.
About 100,000 people gathered to watch the 15-minute spectacular in the city.
In Scotland, Britpop band Pulp performed as thousands braved the cold to mark Hogmanay.
There was also a firework display as Edinburgh marked its 30th year of the celebrations, while there was a mass ceilidh staged in Inverness.
London's display included more than 12,000 fireworks, 600 drones and 430 lights.
It quoted Shakespeare, heard from the King and also paid homage to the NHS, which celebrated 75 years in 2023.
A quote from King Charles was used to mark the 75th anniversary of the Windrush crossing in which he said new arrivals "collectively enrich the fabric of our national life".
Further messages throughout the show were heard from Mayor of London Sadiq Khan, Dame Helen Mirren, Bella Ramsey, Stephen Fry, Joanna Lumley, George the Poet, and Baroness Floella Benjamin, who read a poem by the late Benjamin Zephaniah.
The celebration will continue later with a New Year's Day parade beginning in Piccadilly at midday before making its way over to Westminster's Parliament Square.
Several days of weather warnings did not put off revellers in Scotland with tens of thousands watching Edinburgh's firework display.
Visitors from more than 80 countries gathered in the city, while Pulp headlined a concert in Princes Street Gardens.
Following the fireworks thousands continued to celebrate, signing Auld Lang Syne and dancing.
Inverness was host to the Red Hot Highland Fling, described by organisers as "one of the biggest ceilidhs on the planet", where folk singer Siobhan Miller entertained partygoers up to midnight.
Later, hundreds of hardy swimmers are expected to brave the waters of the Firth of Forth as part of the annual Loony Dook - dook being a Scots word for dip or bathe.
People are encouraged to don fancy dress for the charity swim.
