Travel Tools

Jet Lag Planner and Sleep Adjustment Calculator

Plan gradual bedtime adjustments before travel using origin and destination UTC offsets.

Time-zone adjustment

Jet Lag Planner

Plan a gradual sleep shift before travel using origin and destination UTC offsets.

Origin UTC offset

Destination UTC offset

Preparation days

Time difference10 hoursDaily bedtime shift3.3 hours earlierEstimated adjustment5 daysLight exposure, sleep timing, and personal sensitivity affect jet lag.

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How the jet lag planner works

Enter or choose the values requested by the tool.

The result updates instantly in your browser without uploading personal data.

Review the result and adjust inputs to compare different scenarios.

Frequently Asked Questions

Is the jet lag planner free?

Yes. The tool is free to use and does not require an account.

Is my data uploaded?

No. The calculation runs locally in your browser unless the tool clearly identifies an external public data source.

Should I treat the result as exact?

Use the result as a practical estimate. Real-world outcomes can vary with assumptions, source data, and individual circumstances.

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