The International Day of Happiness takes place on 20 March 2026, a United Nations day recognising happiness and wellbeing as universal goals for people everywhere.
When is International Day of Happiness?
International Day of Happiness is observed in March (March 20). It is one of the many UK awareness days that bring people together around a shared cause — see the full calendar.
Why International Day of Happiness matters
Happiness is closely linked to connection, kindness and purpose, and giving time to others is one of the most reliable ways to lift both your mood and your community’s. Explore mental health volunteering.
How to get involved in International Day of Happiness
There are three simple ways to make International Day of Happiness count:
- Volunteer — spend the day volunteering on a project that brings people together and spreads kindness. Browse opportunities.
- Fundraise — organise a feel-good fundraiser for a wellbeing or community cause.
- Raise awareness — share acts of kindness and wellbeing ideas to encourage others to take part.
International Day of Happiness volunteering opportunities
Mark International Day of Happiness by doing something real. Find volunteering opportunities and start today.
Get involved with International Day of Happiness
Browse live opportunities, log your hours, and earn verified badges you can add to your CV and LinkedIn. Find volunteering roles or see more awareness days.
Other March Dates
Brain Awareness Week
March 16-22
Eating Disorders Awareness Week
February 28 - March 6
Healthcare Science Week
March
International Transgender Day of Visibility
March 31
International Women's Day
March 8
Mother's Day
Last Sunday of March
National Salt Awareness Week
March 9-15
No Smoking Day
March 12
Nutrition and Hydration Week
March 10-16
Ovarian Cancer Awareness Month
1-31
Overseas NHS Workers Day
March 7
Prostate Cancer Awareness Month
1-31
World Autism Acceptance Week
March
World Down Syndrome Day
March 21
World Kidney Day
March 13
World Oral Health Day
March 20
World Sleep Day
March 14
Young Carer's Action Day
March 16
Zero Discrimination Day
March 1
Get involved with International Day of Happiness
Browse opportunities and start making a verified impact today.