Fibonacci Clock
The golden ratio tells time
How to read it
Point at a step, or tap it, to light up that part of the clock.
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The squares are worth 1, 1, 2, 3 and 5, from smallest to largest.
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Add the red and blue squares to get the hour (12h).
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Add the green and blue squares and multiply by 5: those are the minutes, rounded down to 5.
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Several combinations can show the same time — that's part of the charm.
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The story
Invented in 2015 by Canadian engineer Philippe Chrétien in Montreal, this clock was funded on Kickstarter and turns the famous 1-1-2-3-5 sequence into a puzzle you solve every five minutes.
- Year
- 2015
- Place
- Montreal, Canada
- Creator
- Philippe Chrétien
Fun fact
The same time often has several valid combinations; this app picks one deterministically so the app and widget always match.
