Thursday, 20 May 2021
World Metrology Day marks the Metre Convention and the role of accurate measurement in society.
Frequently asked questions
- When is World Metrology Day 2021?
- World Metrology Day 2021 is on Thursday, 20 May 2021.
- What day of the week is World Metrology Day 2021?
- It falls on Thursday.
- How is World Metrology Day calculated?
- This event is observed every year on 20 May.