National Matcha Day is observed in the United States every May 2 to honor matcha, a finely ground green tea powder that has gained popularity in the West. The holiday was founded in 2021 by Jade Leaf Matcha, a San Francisco-based brand that sources organic matcha from Japan. The date coincides with hachijū hachiya, or the "88th night," which is significant in the traditional Japanese calendar as it marks the ideal time to begin the spring tea harvest. Celebrations often include enjoying premium matcha, making matcha lattes, baking with matcha, and participating in traditional Japanese tea ceremonies. Participants are encouraged to share their experiences on social media using the hashtag #NationalMatchaDay. The holiday aims to celebrate the rich history of matcha and Japanese tea culture, as well as its unique flavor and health benefits.