Thursday, 20 May 2027
World Metrology Day marks the Metre Convention and the role of accurate measurement in society.
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Add to calendarFrequently asked questions
- When is World Metrology Day 2027?
- World Metrology Day 2027 is on Thursday, 20 May 2027.
- What day of the week is World Metrology Day 2027?
- It falls on Thursday.
- How is World Metrology Day calculated?
- This event is observed every year on 20 May.