From the glittering skies of Sydney to the festive street parties in Rio and from the iconic ball drop in New York's Times Square to the tranquil candlelight vigils in Tokyo, people across the globe are coming together to celebrate a brand new year.
New Zealand's Auckland became the first major city to celebrate New Year 2025. Thousands thronged downtown or climbed the city's ring of volcanic peaks to witness the fireworks.
Countries in the South Pacific Ocean are the first to ring in the New Year, with midnight in New Zealand striking 18 hours before the ball drop in Times Square in New York.
Sydney fireworks
The "family fireworks" lighted up the Opera House and the Sydney Harbour Bridge, three hours ahead of the main show at midnight in Sydney on New Year's Eve. British pop star Robbie Williams led a singalong with the crowd.
Celebrations in Asia
Most of the Japan was shut down ahead for the Year of the Snake, nation's biggest holiday, as holy places and homes underwent a deep cleaning.
The Year of the Snake in the Asian zodiac is heralded as one of rebirth alluding to the reptile's shedding skin.
Due to the declaration of national mourning, following the Jeju Air plane crash, South Korea cancelled all its celebrations.
A fireworks display in Indonesia's Jakarta featured 800 drones.
China and Russia
Chinese leader Xi Jinping and Russian President Vladimir Putin exchanged New Year's greetings in a reminder of the growing closeness between the leaders who face tensions with the West.
Xi told Putin that their countries would always move forward hand in hand.
In his address to the nation, Putin said Russia has set big goals for ourselves and achieved them, and we overcame difficulties more than once because we were together.
Rio de Janeiro
Rio de Janeiro will throw Brazil's main New Year's Eve bash on Copacabana Beach, with ferries offshore bearing 12 straight minutes of fireworks. Thousands of tourists in cruise ships will witness the show.
More than 2 million people were expected at the Copacabana, hoping to squeeze into concerts by superstar Brazilian artists such as pop singer Anitta and Grammy-award winner Caetano Veloso.
New York
In New York City, the organisation managing Times Square has tested its famous ball drop and inspected 2025 numerals, lights and thousands of crystals as part of a tradition going back to 1907. This year's celebration will include musical performances by TLC, Jonas Brothers, Rita Ora and Sophie Ellis-Bextor.
Meanwhile, Las Vegas' pyrotechnic show will be on the Strip, with 340,000 people anticipated as fireworks are launched from the rooftops of casinos.
American Samoa will be among the last to welcome 2025, a full 24 hours after New Zealand.