Explanation

 International Day of Happiness is celebrated on 20 March. 

First celebrated in 2013.

Theme 2021: Happiness For All, Forever

Theme 2022: Be calm, Be wise and Be Kind

Theme 2023: Be Mindful, Be Grateful, Be Kind 

Theme 2024: Reconnecting for Happiness: Building Resilient Communities

Theme 2025: Caring and Sharing