How is Earth Day calculated?

This event is observed every year on 22 April.

When is Earth Day 1999?

Name: Earth Day
Start: 1999-04-22
End: 1999-04-22
Location: Worldwide

Thursday, 22 April 1999

Earth Day is an international environmental observance held on 22 April each year, promoting awareness and action to protect the planet, support sustainability, and address environmental challenges.

Frequently asked questions

When is Earth Day 1999?: Earth Day 1999 is on Thursday, 22 April 1999.
What day of the week is Earth Day 1999?: It falls on Thursday.
How is Earth Day calculated?: This event is observed every year on 22 April.