United Nations Day for South-South Cooperation
On 12 September the UN celebrates cooperation and the sharing of solutions between developing countries of the Global South.
- UK
- USA
- Ireland (not marked)
- Canada (not marked)
- Australia (not marked)
- New Zealand (not marked)
- International
ListingAdded by us from official sources
Last checked19 October 2026
First heldNot known
About the day
The United Nations marks the day each year, with the UN Office for South-South Cooperation leading it. It highlights solidarity and partnership among developing countries.
2026 theme
Solidarity Rising: Global Alliance for Inclusive and Innovative Development
The 2027 theme has not been announced yet.
Dates for the next three years
| Year | Date | Where | Status |
|---|---|---|---|
| 2027 | Sunday 12 September 2027 | UK, USA, International | Same date every year |
| 2028 | Tuesday 12 September 2028 | UK, USA, International | Same date every year |
| 2029 | Wednesday 12 September 2029 | UK, USA, International | Same date every year |
Where this information comes from
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