Fibonacci Day 2117

Tuesday, 23 November 2117

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

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Frequently asked questions

When is Fibonacci Day 2117?
Fibonacci Day 2117 is on Tuesday, 23 November 2117.
What day of the week is Fibonacci Day 2117?
It falls on Tuesday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.