INTERNATIONAL DAYGENERAL

World Cities Day

Every year on October 31, the world takes stock of the places where most of humanity now lives. World Cities Day is a United Nations observance devoted to better, more sustainable cities. In 2026 it carries the theme "Regenerating the City: Adequate Housing for All."

OCT31

Saturday, October 31Every year on October 31

days to go

Roots: UN General Assembly resolution 68/239 (Dec 27, 2013); idea born at the 2010 Shanghai Expo
Also on Oct 31: World Savings Day · Reformation Day · Girl Scout Founder’s Day
Hashtag: #WorldCitiesDay

Add to my calendar Send a card Email a friend

Apple or Outlook calendar

3 ways to celebrate

IN THE COMMUNITY

Love your city out loud

Take a photo walk through your city and share what makes it livable, from the park bench to the skyline at dusk, posting your favorites with #WorldCitiesDay and the story behind each shot.

WITH FRIENDS

Green something

Join or organize a litter pick, tree planting, park cleanup, or community garden session that makes your neighborhood more beautiful and resilient, the exact local action this day inspires.

AT HOME

Learn your city's plan

Read one chapter of your city's climate, housing, or resilience plan, then show up to a planning meeting or write your local representative about one improvement you want to see.

Plan ahead

World Cities Day is observed on October 31 every year. Here is where it lands for the next ten years, handy for planners, marketers and party people.

2026Sat, Oct 31this year

2027Sun, Oct 31

2028Tue, Oct 31

2029Wed, Oct 31

2030Thu, Oct 31

2031Fri, Oct 31

2032Sun, Oct 31

2033Mon, Oct 31

2034Tue, Oct 31

2035Wed, Oct 31

2036Fri, Oct 31

Add to my calendar (repeats yearly)