Every day is a reason to be celebration, and the 20th of April is no different! From language preservation to social movements the day is filled with special observances that are resonant across the globe. In this blog we’ll discuss the national and international holidays observed on April 20th as well as their history and why they’re important. International Day April 20.
UN Chinese Language Day
The most well-known International Day on April 20 is UN Chinese Language Day. It was established through the United Nations in 2010, the purpose of this celebration is to:
- Encourage multilingualism and diversity of culture
- Honor Chinese language as one of the official UN languages. Chinese Language as one of official six UN languages
- Honour Cangjie Honor Cangjie, the mythical creator of Chinese characters
This day is a time to appreciate its rich linguistic and historical background.
4/20 – Cannabis Culture Day
While it is not an official day of the year, April 20 (or 4/20) is widely recognized as Cannabis Culture Day. The expression “420” originated in California in the 1970s. It has developed into a worldwide recognition of the cannabis industry and their culture influence.
The most important themes for the day include:
- Advocates for the legalization of cannabis
- Peaceful demonstrations and public events
- Recognizing recreational and medicinal cannabis usage
Notice: While celebrated in several parts of the world but the lawfulness and perceptions of society about cannabis varies by country.
Volunteer Recognition Day
Volunteer Recognition Day is a heartfelt way to thank those who dedicate their time and effort to help others. If it’s working in an animal shelter, coordinating community events, or assisting worldwide causes, volunteers have a an impact on the world. International Day April 20
Celebrations that you can have:
- Affirm your gratitude to a volunteer on a personal level
- Share a story about volunteer work on social media
- Think about joining a cause that you’re passionate about
National Look-Alike Day
The fun and lighthearted celebration invites people to dress as the person they know, a acquaintance, or famous person. The day is full of pictures, fun and laughter.
You can:
- Post comparison photos of side-by-side posts
- Create a contest to see who is the most like you at school or work
- Post a photo of you “twin” on social media
National Cheddar Fries Day
Foodies April 20 is also a day to enjoy something tasty– National Cheddar Fries Day. This crispy, cheesy snack is given its own spotlight and some restaurants will provide special offers.
Pizza Delivery Driver Appreciation Day
Don’t forget the hardworking individuals behind hot, fresh pizza that arrives at your doorstep. This day is dedicated to the hard work and trustworthiness of pizza delivery drivers.
Be sure to show your appreciation by:
- Doing a generous tip
- Thank you notes
- A kind message to send online
International Cli-Fi Day
Cli-Fi (Climate Fiction) explores the effects of climate change using storytelling. International Cli-Fi Day encourages the public to be aware of environmental issues through fiction that inspires action and imagination.
Read these recommended books:
- The Water Knife by Paolo Bacigalupi
- Flight Behavior by Barbara Kingsolver
- New York 2140 by Kim Stanley Robinson
Orthodox and Coptic Easter (2025)
In 2025, the 20th of April also will be the date of Orthodox or Coptic Easter which is a major celebration of the Christian faith. Christians who adhere to Eastern practices celebrate Jesus’ resurrection Jesus Christ with prayers, celebrations, and customs of the culture.
Final Thoughts
April 20 isn’t just a day on the calendar. It’s an occasion to celebrate the language, culture as well as community and imagination. If you’re celebrating Chinese language heritage, praising volunteers, enjoying a delicious meal of cheddar fries, or dipping into the world of climate stories, you’ll find something for a


