How is Bicycle Day calculated?

This event is observed every year on 19 April.

When is Bicycle Day 2026?

Name: Bicycle Day
Start: 2026-04-19
End: 2026-04-19
Location: Worldwide

Sunday, 19 April 2026

Bicycle Day commemorates the historic 19 April 1943 bicycle ride by Swiss chemist Albert Hofmann, who first experienced the effects of LSD, and is marked each year on 19 April.

Frequently asked questions

When is Bicycle Day 2026?: Bicycle Day 2026 is on Sunday, 19 April 2026.
What day of the week is Bicycle Day 2026?: It falls on Sunday.
How is Bicycle Day calculated?: This event is observed every year on 19 April.