How is Asteroid Day calculated?

This event is observed every year on 30 June.

When is Asteroid Day 1917?

Name: Asteroid Day
Start: 1917-06-30
End: 1917-06-30
Location: Worldwide

Saturday, 30 June 1917

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.

Frequently asked questions

When is Asteroid Day 1917?: Asteroid Day 1917 is on Saturday, 30 June 1917.
What day of the week is Asteroid Day 1917?: It falls on Saturday.
How is Asteroid Day calculated?: This event is observed every year on 30 June.