Earth Day 2025 Date And Time. Check also the date of earth day in 2026 and in the following years. On april 22nd, 2025, earth day will turn 55, with 192 countries and over one billion people around the globe expected to participate.

The day recognizes the earth and its ecosystems as. This date has remained consistent since the very first event in 1970, thanks to the visionary efforts of then us senator gaylord nelson.