Fibonacci Day 2559

Friday, 23 November 2559

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

Add to your calendar

Download an iCalendar file for Fibonacci Day and add it to your calendar app.

Add to calendar

Frequently asked questions

When is Fibonacci Day 2559?
Fibonacci Day 2559 is on Friday, 23 November 2559.
What day of the week is Fibonacci Day 2559?
It falls on Friday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.