Sydney and Hong Kong launched spectacular firework at the start of the new year in a wave of celebrations that will be followed by billions of people around the world.
Sydney, Australia's largest city, launched its largest ever fireworks show, with a record amount of new stock and visual effects lighting up the city's sky in various colors and forms for 12 minutes, sparking the attention of more than 1.5 million people gathered in front of the bay off the city and in the gardens.
A thunderstorm earlier did not ease the resolve of revelers who had set up the tents, some arriving early on Monday.
Since the United Nations has declared 2019 years of indigenous languages, the Gulf of Sydney has seen performances of indigenous cultures, including paintings of lights on the pillars of the famous Sydney Bridge.
In Hong Kong, hundreds of thousands of people gathered in the streets on both sides of the city's Victoria Harbor for a 10-minute fireworks display.
Fireworks worth up to $1.8 million were used to paint the skyscrapers in the colors accompanied by music.
The crowd gathered in the streets, which were adorned with lights and glittering glass that read "2019".
In Indonesia's capital, Jakarta, more than 1,000 men and women held their government-organised wedding.