Some leaders took time to recall the 1995 conference, detail domestic initiatives or lament that progress toward female equality is lagging or even retreating.
The 1995 work of what was officially called the U.N.'s Fourth World Conference on Women is considered a signal moment in women's rights.
Indian Prime Minister Narendra Modi pointed to his country's 2017 law requiring some employers to provide 26 weeks of paid maternity leave.
Still, many leaders, including some female ones, didn't devote much time or detail to women's issues in their speeches.
In Norway, the prime minister, the parliament speaker and over 40% of parliamentarians and government ministers are women.