The New Zealand prime minister won reelection two years ago but said she will not seek reelection ahead of the general election in October.
Prime Minister Anthony Albanese led a chorus of global reactions after an emotional Ardern revealed the next general election will be held on Saturday, October 14, with a new Labour leader at the helm.
Ardern said she had taken time to consider her future over the summer break and decided it was time for her to move on after more than five years as the nation’s leader.
She said she would resign as prime minister by February 7 to give her successor time to settle in the party leader’s role before the election.
“I have given my absolute all to being prime minister, but it has also taken a lot out of me,” she said.
“You cannot and should not do the job unless you have a full tank, plus a bit in reserve for those unplanned and unexpected challenges that inevitably come along.
“Having reflected over summer I know I no longer have that bit extra in the tank to do the job justice. It’s that simple.”
Choking back tears, Ardern said she would have done a disservice to New Zealanders if she continued in the job.
Ardern addressed her fiancé Clarke Gayford, who sat in on her press conference, and her four-year-old daughter Neve.
“Neve, mum is looking forward to being there when you start school this year,” she said.
“And to Clarke – let’s finally get married.
She has demonstrated that empathy and insight are powerful leadership qualities”.
Albanese described Ardern, 42, as a “fierce advocate for New Zealand” and a “great friend” to him.
Canadian Prime Minister Justin Trudeau thanked Ardern for her “empathic, compassionate, strong, and steady leadership over these past several years”.
“The difference you have made is immeasurable,” he said.
Foreign Minister Penny Wong said: “Jacinda brought strength, compassion and kindness to leadership, gaining the admiration of so many around the world. You are a source of inspiration to me and many others.