Interactive Portugal Tool
Portugal Jet Lag & Sleep Shift Planner
Generate a 3-day light exposure and meal schedule for arriving in Lisbon (Portugal Standard Time).
Destination Timezone: Portugal Standard Time (Lisbon)
Day 1 Strategy: Get 30+ minutes of natural morning or afternoon daylight walking around Lisbon Historic Center & Old Quarter, stay hydrated, and hold off sleep until at least 21:30 local time.