Images and videos show how other parts of the world have welcomed in 2022 with fireworks and lightshows.
Christmas Island, Kiribati, was the first to welcome in the New Year at 10am, UK time - closely followed by Chatham Islands, other parts of New Zealand and Tonga as well as Fiji.
Due to where the international date line is found, countries in Asia and the Pacific region of Earth are among the first to enter 2022.
Ahead of the UK's New Years Eve celebrations, here's how other countries are celebrating the start of 2022.
Over in Auckland, there was a colourful, glowing light display across the city's skyline.
Fireworks flew into the sky while cars driving through the North Island city beeped their horns for New Year.
Here's the countdown scene as it happened in Auckland - listen closely to hear cheers from New Zealanders.
New Zealand welcomes in 2022 with a fireworks display at the Sky Tower in Auckland 🌏🎆
— Sky News (@SkyNews) December 31, 2021
We'll bring you more updates as countries around the world mark the beginning of 2022 👉 https://t.co/8K9JxMrzxd pic.twitter.com/j5xb6rpEwa
Meanwhile fireworks lit up the skies and sea near Sydney Harbour as part of Australia's New Years Eve event.
As part of Sydney's annual fireworks extravaganza for New Year, there is a display three hours before midnight ahead of the main show at midnight.
Reflections of bright pinks and blue explosions can be seen in the water surrounding the Opera House and Sydney Harbour Bridge.
New Year Eve with lots of fireworks at Sydney, Australia. pic.twitter.com/5McgHGR5BM
— RealMac (@beingrealmac) December 31, 2021
It's been a less chilly New Year event for Australia and New Zealand than most Brits are used to.
Temperatures in Sydney were around 23 degrees when the clock turned midnight while Auckland locals enjoyed temperatures of 18 degrees.
Fiji - one of the first places to mark the arrival of 2022 - has cultural traditions to ring in the New Year, the In Fijian culture, according to the Fiji Pocket Guide.
One Fiji Pocket Guide blogger, who has spent time learning about Fiji culture on her travels, said: "The New Year is not just celebrated for one day, but an entire week (and longer in some villages)."
She added: "Many different clans within a village will usually come together to have a huge feast, with each clan or family in charge of preparing one aspect of the feast."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here