Jet Lag Calculator

Compare two time zones, see the exact time difference, and get a personalized plan to beat jet lag.

From (your time zone)

To (destination)

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Time difference

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How this works

We use your device's live clock and the official IANA time-zone database (via the browser Intl API) to compute the exact offset between the two places you pick, including daylight saving time. The jet lag estimate follows the general rule of about one hour of adjustment per day and is for guidance only.

Disclaimer: This tool is for general informational purposes only and is not medical advice. If you have chronic sleep problems, please consult a healthcare professional.