Pacific islands including Samoa, Tonga and Kiribati were the first to enter 2017 at 10:00 GMT, followed an hour later by Auckland, where fireworks erupted from the 328m (1,080ft) tall Sky Tower in the city centre, as celebration erupts all over the world in the New Year.
From Lagos, Nigeria to Washington DC, United States, crowds gathered to say goodbye to 2016, a tumultuous year in global politics.
Highligh of the former year includes the surprise win of
Donald Trump in the United States Presidential election, who tweeted New Year greetings, including to his “many enemies”.
Mr Trump will be sworn in as US president on 20 January.
A “leap second” will be added to the countdown in countries in the GMT timezone including the UK to compensate for a slowdown in the Earth’s rotation.
The extra second will occur just before clocks strike midnight and a time of 23:59:60 GMT will be recorded, delaying 2017 momentarily.
This is required because standard time lags behind atomic clocks.
The iconic midnight fireworks display at Sydney Harbour in Australia paid tribute to Prince and David Bowie, two music superstars who died in 2016.
Seven tonnes of fireworks were set off in two displays watched by about one and a half million people.