International Day for Biosphere Reserves
A UNESCO day on 3 November that highlights biosphere reserves, places where people and nature are managed together sustainably.
- UK
- USA
- Ireland (not marked)
- Canada (not marked)
- Australia (not marked)
- New Zealand (not marked)
- UAE and Gulf (not marked)
- International
About the day
UNESCO's General Conference proclaimed the International Day for Biosphere Reserves at its 41st session in 2021. It promotes the world network of biosphere reserves under UNESCO's Man and the Biosphere programme.
Dates for the next three years
| Year | Date | Where | Status |
|---|---|---|---|
| 2026 | Tuesday 3 November 2026 | UK, USA, International | Same date every year |
| 2027 | Wednesday 3 November 2027 | UK, USA, International | Same date every year |
| 2028 | Friday 3 November 2028 | UK, USA, International | Same date every year |
Questions and answers
When is International Day for Biosphere Reserves 2026?
International Day for Biosphere Reserves 2026 is on Tuesday 3 November 2026. It falls on the same date every year.
Who organises International Day for Biosphere Reserves?
International Day for Biosphere Reserves is organised by UNESCO.
When did International Day for Biosphere Reserves start?
International Day for Biosphere Reserves was first held in 2021.
Where is International Day for Biosphere Reserves marked?
International Day for Biosphere Reserves is marked in the UK and the USA, and internationally.
Where do these details come from?
We checked these details against one source, including UNESCO: International Day for Biosphere Reserves. They were last checked on 19 October 2026.
Where this information comes from
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