Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Time Zones
Jet Lag Recovery Calculator
Estimate how many recovery days you need after crossing time zones, factoring in travel direction, your age, flight length, and typical sleep quality. Useful for planning post-flight schedules and acclimatisation strategies.
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
| Jet Lag Recovery Calculator | Jet Lag Recovery Calculator | |
|---|---|---|
| Category | Time Zones | Time Zones |
| Inputs required | 5 | 4 |
| Result | Recovery Days (days) | Recovery Time (days) |
| What it does | Estimate how many recovery days you need after crossing time zones, factoring in travel direction, your age, flight length, and typical sleep quality. Useful for planning post-flight schedules and acclimatisation strategies. | 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. |