Jet Lag Recovery: New York to Tokyo (9 Time Zones East)
Estimates jet lag recovery for the New York–Tokyo route crossing 9 time zones eastward — one of the worst for jet lag.
How to use this tool
- Enter the number of time zones your flight crosses.
- Select whether you are flying east or west — eastbound travel is generally harder to recover from.
- The calculator estimates recovery days based on the commonly used 1.5 days per time zone rule.
The New York–Tokyo eastward crossing of 9 time zones is notoriously tough, often requiring a week to fully adjust.
Frequently asked questions
- How long does jet lag last?
- A common rule of thumb is one day of recovery per 1.5 time zones crossed. Eastbound travel is usually harder; westbound travel allows the body to extend its natural day.
- How can I recover from jet lag faster?
- Adjust your sleep schedule before departure, stay hydrated, avoid alcohol on the flight, get natural daylight at the destination, and try melatonin if recommended by your doctor.