Fibonacci Day 1177

Wednesday, 23 November 1177

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 1177?
Fibonacci Day 1177 is on Wednesday, 23 November 1177.
What day of the week is Fibonacci Day 1177?
It falls on Wednesday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.