World Metrology Day 2026

May 20, 2026 in the World

World Metrology Day takes place on May 20, 2026, and is celebrated by more than 80 countries around the globe. The day celebrates the signing of the Metre Convention on that day in 1875 in Paris with representatives of 17 nations attending.

We have placed a detailed description of this event on this page: World Metrology Day 2025. For further information please stop by there!

Where is the event?
Worldwide
World
When is the event?
Wednesday, the 20th of May 2026
Only 510 days left!

More dates:

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World Metrology Day 2026 - May 20, 2026 – Copyright © 2024 Cute Calendar