World Earth Day 2025 Date. Join us to honor and celebrate our remarkable planet on this extraordinary day. More than 1 billion people now participate in earth day activities each year, making it the largest civic observance in the world.
The date on which the holiday falls on remain the same, but the day of the week changes each year; Tuesday, april 22nd is day number 112 of the 2025 calendar year with 11 months, 14 days until earth day 2025.