Quick answer
How long will my jet lag last?
Jet lag typically lasts 1 day per time zone crossed. Eastbound is harder than westbound. Get recovery estimate and prep tips.
✈️ Jet Lag Calculator
Estimate recovery days from time zones crossed.
Top tips: Hydrate (avoid alcohol). Adjust meals to destination day 1. Get 30 min sunlight on arrival. Melatonin 0.5-3mg at destination bedtime helps. Avoid naps over 30 min on day 1.
Reviewed by: Montreal Tips editorial team · Last updated: May 13, 2026
Note: Estimates only — verify with official sources before booking.