Lebanon Jet Lag Calculator

Context for the adjustment: Beirut rests at 19 m above sea level, and Lebanon's position in Western Asia shapes both flight routing and how much daylight you meet on arrival. Under six hours of shift, most travellers absorb Lebanon inside a long weekend — eastward nights feel short for two or three evenings in Beirut (UTC+2), then settle.

Lebanon keeps a single reference offset of UTC+2 across Beirut, so the mental math never changes mid-trip. Reference frame for Lebanon: Beirut keeps UTC+2 and sits 19 m above sea level in Western Asia, with that same offset in every season.

Day one in Beirut: sunlight before midday. Meals go on the local clock in Lebanon, and lights-out stays no earlier than 9:30pm so the body accepts the new zone. Before you fly to Lebanon: move bedtime and meal times 30–60 minutes per day toward Beirut time for 3–4 days.

In the air on the Lebanon route (arrival UTC+2), hydrate hard and skip alcohol. Sleep only when it is night in Beirut, so the cabin previews Lebanon hours. Direction changes the bill: flying to Lebanon eastward from London costs about 2 days of recovery.

The westward routing to Beirut costs only 1.3 — the body clock delays to Lebanon more easily than it advances. Applied to this Western Asia trip: 2 hours east from London to Beirut maps to about 2 reset days, so a Lebanon itinerary should front-load outdoor time on days one to 2.

If the afternoon slump hits in Beirut, nap 20–30 minutes maximum, before 3pm Lebanon time. Or push through with a walk in Lebanon — long naps push adjustment back a day. Near-4am wakings are part of night one in Beirut (19 m, UTC+2); stay dark and still, skip the clock-checking, and Lebanon nights settle by the third.

For shifts over six hours — into Lebanon, that means the 2-hour London gap — 0.5–3 mg of melatonin at Beirut bedtime (UTC+2) pulls the clock faster in 3–4 nights. Clear Lebanon dosing with a clinician first. Practical baseline: lights out in a dark 16–20°C Beirut room (19 m, UTC+2), and no evening alcohol for the first two nights while the Lebanon clock settles.