Jet Lag Recovery Time Calculator
Jet Lag Recovery Time
Estimate how many days it takes to recover from jet lag based on time zones crossed, travel direction, and personal factors.
Formula
Recovery Days (East) = Zones x 1.5 x Age Factor x Sleep Factor; Recovery Days (West) = Zones x 1.0 x Age Factor x Sleep Factor
Frequently Asked Questions
Why is eastbound jet lag worse?
Traveling east shortens your day, requiring you to fall asleep earlier. The body naturally runs on a cycle slightly longer than 24 hours, making it easier to stay up later (westbound) than to sleep earlier.
How long does jet lag last per time zone?
A common rule of thumb is 1 day per time zone crossed going east, and about two-thirds of a day per zone going west.
What helps jet lag recovery?
Sunlight exposure at the right times, melatonin supplements, staying hydrated, avoiding alcohol, and gradually shifting sleep times before departure all help.
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