TNPSC Thervupettagam

World Metrology Day 2025 - May 20

May 25 , 2025 17 hrs 0 min 28 0
  • The day commemorates the Metre Convention signed in Paris on May 20, 1875.
  • 2025 marks the 150th anniversary of the Metre Convention.
  • It is an international agreement that formally established the metric system to ensure consistency and fairness in the research measurements and the unit standardisation worldwide.
  • The theme for 2025 is ‘Measurements for all times, for all people'.

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