Health Calculators
Sleep & Recovery

Circadian shift calculator

Estimate days needed to fully adjust to a new sleep schedule after travel, shift work, or a schedule change.

Your inputs

Results

Live result
Days to fully adjust
6.0 days
Direction
Eastward / earlier
Half-adjustment
3.0 days
Rough rule
1 hr/day

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Medical disclaimer: This tool is for general educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health.

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