Fibonacci Day 1318

Wednesday, 23 November 1318

Fibonacci Day uses the month and day notation 11/23 to echo the opening numbers of the Fibonacci sequence: 1, 1, 2, 3.

Frequently asked questions

When is Fibonacci Day 1318?
Fibonacci Day 1318 is on Wednesday, 23 November 1318.
What day of the week is Fibonacci Day 1318?
It falls on Wednesday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.