Philippines Jet Lag Calculator

Jet lag into Manila scales with one number: |home offset − 8|. London departures face 8 hours, New York 13, Tokyo 1 and Sydney 2 — each figure feeds the recovery estimate for Manila at UTC+8. A gap this wide puts Philippines on the wrong side of the day from your home evening.

Do nothing, and Manila (UTC+8) takes a week to accept. Manage light and sleep on purpose in Philippines and it is about 8 days. Reference frame for Philippines: Manila keeps UTC+8 and sits 16 m above sea level in Southeast Asia, with that same offset in every season.

Morning light is the strongest reset signal Philippines offers at this shift size. In Manila (UTC+8), get it outdoors before 10am local. Before you fly to Philippines: move bedtime and meal times 30–60 minutes per day toward Manila time for 3–4 days.

In the air on the Philippines route (arrival UTC+8), hydrate hard and skip alcohol. Sleep only when it is night in Manila, so the cabin previews Philippines hours. Direction changes the bill: flying to Philippines eastward from London costs about 8 days of recovery.

The westward routing to Manila costs only 5.3 — the body clock delays to Philippines more easily than it advances. Applied to this Southeast Asia trip: 8 hours east from London to Manila maps to about 8 reset days, so a Philippines itinerary should front-load outdoor time on days one to 8.

Near-4am wakings are part of night one in Manila (16 m, UTC+8); stay dark and still, skip the clock-checking, and Philippines nights settle by the third. Sleep follows light in Philippines: book a dark room in Manila (16 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 Philippines, that means the 8-hour London gap — 0.5–3 mg of melatonin at Manila bedtime (UTC+8) pulls the clock faster in 3–4 nights.

Clear Philippines dosing with a clinician first. Practical baseline: lights out in a dark 16–20°C Manila room (16 m, UTC+8), and no evening alcohol for the first two nights while the Philippines clock settles.