Tunisia Jet Lag Calculator

Tunisia keeps a single reference offset of UTC+1 across Tunis, so the mental math never changes mid-trip. Under six hours of shift, most travellers absorb Tunisia inside a long weekend — eastward nights feel short for two or three evenings in Tunis (UTC+1), then settle.

From London the shift to Tunis is 1 hours eastward; New York faces 6; Tokyo 8; Sydney 9. Reference frame for Tunisia: Tunis keeps UTC+1 and sits 4 m above sea level in North Africa, with that same offset in every season.

Direction changes the bill: flying to Tunisia eastward from London costs about 1 days of recovery. The westward routing to Tunis costs only 0.7 — the body clock delays to Tunisia more easily than it advances. Move 30–60 minutes daily toward Tunis time (UTC+1) for 3–4 days pre-flight.

Keep the Tunisia flight alcohol-free. Treat the cabin as a preview of Tunisia time rather than home time. Day one in Tunis: sunlight before midday.

Meals go on the local clock in Tunisia, and lights-out stays no earlier than 9:30pm so the body accepts the new zone. Applied to this North Africa trip: 1 hours east from London to Tunis maps to about 1 reset days, so a Tunisia itinerary should front-load outdoor time on days one to 1.

Naps are a tool with a limit in Tunisia: 20–30 minutes, done by 3pm Tunis time, never as a substitute for a full local night. For shifts over six hours — into Tunisia, that means the 1-hour London gap — 0.5–3 mg of melatonin at Tunis bedtime (UTC+1) pulls the clock faster in 3–4 nights. Clear Tunisia dosing with a clinician first.

Near-4am wakings are part of night one in Tunis (4 m, UTC+1); stay dark and still, skip the clock-checking, and Tunisia nights settle by the third. Practical baseline: lights out in a dark 16–20°C Tunis room (4 m, UTC+1), and no evening alcohol for the first two nights while the Tunisia clock settles.