Which World Metrology Day is this year?

This year is the 23rd World Metrology Day.

May 20th, 2022 is the 23rd World Metrology Day. The theme of this year's World Metrology Day is "Metrology in the Digital Age". The theme aims to make people aware of the changing trend of digital technology to today's society. In order to cooperate with the activities of World Metrology Day, the General Administration of Market Supervision officially defined the China theme of World Metrology Day as "Metrology in the Digital Age".

World Metrology Day is1May 20th, 875, the anniversary of the signing of metric convention. Metric convention lays the foundation for the establishment of a global coordinated measurement system, and provides support for scientific discovery and innovation, industrial manufacturing, international trade, and even the improvement of quality of life and global environmental protection.