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Chronotype calculator
Discover if you're a morning lark or night owl, and find your optimal sleep and wake times.
Dr. Sarah ChenVerified
PhD Sports Science, Registered Nutritionist (RNutr)
Sports scientist and registered nutritionist specialising in metabolic health, athletic performance and dietary analysis.
h (e.g. 7.5 = 7:30)
h (e.g. 23.5 = 11:30pm)
Enter values above to see your result
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