International Day of Light 2022

International Day of Light celebrates light science and its applications in culture, education and sustainable development.

Frequently asked questions

When is International Day of Light 2022?

International Day of Light 2022 is on Monday, 16 May 2022.

What day of the week is International Day of Light 2022?

It falls on Monday.

How is International Day of Light calculated?

This event is observed every year on 16 May.