Fibonacci Day 1200

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 1200?

Fibonacci Day 1200 is on Thursday, 23 November 1200.

What day of the week is Fibonacci Day 1200?

It falls on Thursday.

How is Fibonacci Day calculated?

This event is observed every year on 23 November.