Answer
May 20
Explanation
World Metrology Day is celebrated every year on May 20.
Key Points
- > May 20
- > Meter Convention
- > Accurate measurement
Additional Information
- It highlights the importance of measurement science.
- The Meter Convention was signed in 1875.
| Subject | Information |
|---|---|
| Established | 1875 |
| Importance | Measurement Science |