Fibonacci Day 1260

Tuesday, 23 November 1260

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 1260?
Fibonacci Day 1260 is on Tuesday, 23 November 1260.
What day of the week is Fibonacci Day 1260?
It falls on Tuesday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.