International Day of Light is a global observance held annually on May 16th to celebrate the role of light in science, culture, and art, and its importance for sustainable development and human well-being. The day also aims to raise awareness about the vital role of light-based technologies in areas such as energy, education, agriculture, and health. The International Day of Light was proclaimed by the United Nations Educational, Scientific and Cultural Organization (UNESCO) in 2017, following the recommendation of the International Year of Light and Light-based Technologies in 2015. The International Day of Light is celebrated to raise awareness about the crucial role that light and related technologies play in our daily lives, as well as in fields such as science, culture, art, education, and sustainable development. This annual observance also recognizes the importance of advancing scientific knowledge and promoting international cooperation in the fields of optics and photonics. The International Day of Light was established by UNESCO in 2017 and is celebrated on May 16th each year. The aim of the International Day of Light is to raise awareness about the crucial role that light plays in science, culture, and art, and how it can promote sustainable development and improve people's lives. This day serves as a platform for promoting and celebrating the role of light in scientific advancements, education, and innovation. It also highlights the importance of light-based technologies in various fields such as medicine, telecommunications, energy, and agriculture, among others. The International Day of Light is celebrated on May 16th every year, and it is recognized by UNESCO and the United Nations. The Day (May 16) was chosen for the occasion as it marks the anniversary of the first successful operation of the laser in 1960 by physicist and engineer Theodore Maiman. Dengue Prevention Day 2023: How to Protect yourself from Dengue Sikkim Day 2023: Relevance and Significance of Sikkim Day Remembering Kunwar Natwar Singh on his 92 birth Anniversary