Spain Jet Lag Calculator

Spain keeps a single reference offset of UTC+1 across Madrid, so the mental math never changes mid-trip. Subtract your home UTC offset from Spain's 1 and the remainder is the shift your body clock must absorb.

Concretely: London → Madrid = 1 h, New York → Madrid = 6 h, Tokyo → Madrid = 8 h, Sydney → Madrid = 9 h. Reference frame for Spain: Madrid keeps UTC+1 and sits 667 m above sea level in Southern Europe, with daylight saving nudging summer clocks an hour.

Day one in Madrid: sunlight before midday. Meals go on the local clock in Spain, and lights-out stays no earlier than 9:30pm so the body accepts the new zone. Sip an extra 500 ml of water for every 3 hours in the air to Madrid; cabin air on the 1-hour Spain run is drier than most deserts.

Direction changes the bill: flying to Spain eastward from London costs about 1 days of recovery. The westward routing to Madrid costs only 0.7 — the body clock delays to Spain more easily than it advances. Applied to this Southern Europe trip: 1 hours east from London to Madrid maps to about 1 reset days, so a Spain itinerary should front-load outdoor time on days one to 1.

Near-4am wakings are part of night one in Madrid (667 m, UTC+1); stay dark and still, skip the clock-checking, and Spain nights settle by the third. Sleep follows light in Spain: book a dark room in Madrid (667 m), keep it cool (16–20°C), and wear a mask if the early sunrise leaks through the blinds. For shifts over six hours — into Spain, that means the 1-hour London gap — 0.5–3 mg of melatonin at Madrid bedtime (UTC+1) pulls the clock faster in 3–4 nights.

Clear Spain dosing with a clinician first. Practical baseline: lights out in a dark 16–20°C Madrid room (667 m, UTC+1), and no evening alcohol for the first two nights while the Spain clock settles.