1 January 2013
Last updated at 10:18
Thousands of people around the world are taking part in celebrations to welcome in 2013.
Sydney was one of the first cities to see in the new year with a dazzling firework display attended by hundreds of thousands of people around the Australian city's famous harbour.
Hong Kong was said to have put on its biggest New Year pyrotechnics display for six years, with $1.6m (£980,000) worth of fireworks exploding over Victoria Harbour.
A four-mile (7km) highway through central Jakarta was closed to traffic for a massive street party and fireworks display.
People in Burma enjoyed their first ever public new year celebrations, with a $1m fireworks and musical event in the former capital Rangoon. The country's previous military rulers had banned large public gatherings.
But the mood in India was more subdued, with celebrations cancelled and vigils held in memory of a young woman who died on Friday after a gang rape.
Revellers in Dubai were treated to the spectacle of fireworks exploding around the Burj Khalifa tower.
The Russian capital Moscow was the first of the major European cities to welcome in 2013, with a fireworks display over St Basil's Cathedral in Red Square.
A few miles from St Petersburg, in the city of Zelenogorsk, revellers welcomed the arrival of 2013 with sparklers.
Hundreds of thousands of people lined the Thames in London to watch the UK capital's famed fireworks display - an 11-minute extravaganza sparked off by the chimes of Big Ben.
Fireworks also lit up the sky over the Senegalese capital, Dakar.
Some two million people gathered on Rio de Janeiro's Copacabana beach for a bonanza 24-tonne firework display.
At the stroke of midnight in New York's Times Square, confetti flooded the air where some one million people had gathered to welcome in the new year.
And, a few hours later, the west coast city of San Francisco followed with its own spectacular display.