Free interactive tool

France Jet Lag & Sleep Shift Planner

Build a day-by-day light exposure, sleep adjustment, and caffeine cutoff plan tailored to your home time zone and arrival time in France (CET/CEST UTC+1/UTC+2).

Circadian Shift & Day-1 Paris / Nice Strategy

France Jet Lag & Day-1 Arrival Planner (CET UTC+1 / CEST UTC+2)

France observes Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) from late March to late October. Select your departure time zone and arrival window in Paris (CDG/ORY) or Nice (NCE) to generate a science-backed Day-1 sunlight, café, and sleep plan.