World Metrology Day
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About this moment
There are 244 days until World Metrology Day, on Thursday, 20 May 2027.
World Metrology Day is observed every year on May 20. In 2027 it falls on Thursday, 20 May 2027.
- Where
- Worldwide
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- awareness-dayobservancewikidatainternational-day
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Last verified Sep 10, 2026
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