Tuesday, 3 November 2026
International Day for Biosphere Reserves promotes the conservation and sustainable use of ecosystems through UNESCO’s biosphere reserve network.
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Add to calendarFrequently asked questions
- When is International Day for Biosphere Reserves 2026?
- International Day for Biosphere Reserves 2026 is on Tuesday, 3 November 2026.
- What day of the week is International Day for Biosphere Reserves 2026?
- It falls on Tuesday.
- How is International Day for Biosphere Reserves calculated?
- This event is observed every year on 3 November.