Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Time Zones
Travel Jet Lag Recovery Calculator
Estimate how many days of jet-lag recovery you can expect after a long-haul flight, based on time-zone gap, flight length, age, and travel experience. Use it before booking trips to plan rest days.
Fill in the required fields to see your result.
Time Zones
Jet Lag Recovery Calculator
Estimate the number of days needed to fully resync your circadian rhythm after long-haul travel, weighted by time-zone shift, direction (eastward is harder), age, and travel frequency. Use it before a trip to plan meetings and downtime realistically.
Fill in the required fields to see your result.
Key differences
| Travel Jet Lag Recovery Calculator | Jet Lag Recovery Calculator | |
|---|---|---|
| Category | Time Zones | Time Zones |
| Inputs required | 5 | 4 |
| Result | Jet Lag Recovery Days (days) | Recovery Time (days) |
| What it does | Estimate how many days of jet-lag recovery you can expect after a long-haul flight, based on time-zone gap, flight length, age, and travel experience. Use it before booking trips to plan rest days. | Estimate the number of days needed to fully resync your circadian rhythm after long-haul travel, weighted by time-zone shift, direction (eastward is harder), age, and travel frequency. Use it before a trip to plan meetings and downtime realistically. |