How is Asteroid Day calculated?

This event is observed every year on 30 June.

When is Asteroid Day 2031?

Name: Asteroid Day
Start: 2031-06-30
End: 2031-06-30
Location: Worldwide

Monday, 30 June 2031

Asteroid Day is an international awareness event held each year on 30 June to promote public understanding of asteroids, planetary defence, and the 1908 Tunguska event in Siberia.

Add to your calendar

Download an iCalendar file for Asteroid Day and add it to your calendar app.

Add to calendar

Frequently asked questions

When is Asteroid Day 2031?: Asteroid Day 2031 is on Monday, 30 June 2031.
What day of the week is Asteroid Day 2031?: It falls on Monday.
How is Asteroid Day calculated?: This event is observed every year on 30 June.