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Jet lag plan

Dakar → Reykjavík

Dakar and Reykjavík share the same time zone.

About 5,507 km due north · approximately 7.3-hour non-stop flight · an ultra-long-haul flight.

On arrival

  • Dakar and Reykjavík are in the same time zone — no jet lag adjustment needed.

About the Dakar → Reykjavík route

The route from Dakar, Senegal to Reykjavík, Iceland covers roughly 5,507 kilometres in a due north direction. At standard jet cruise speed plus a one-hour allowance for taxi, climb, and descent, a non-stop flight takes about 7.3 hours. Both cities sit in the northern hemisphere, so the seasonal direction of daylight (longer days in June, shorter in December) matches between origin and destination.

Dakar is in the tropics, so day length varies only slightly across the year. Light cues for the circadian system stay strong year-round. Reykjavík is in the subarctic zone. In summer the sun sets briefly or not at all; in winter daylight may drop below five hours. The season of travel changes light-based jet-lag protocols significantly.

Business-hours overlap

Standard 09:00–18:00 working hours at both ends of this route overlap by approximately 9 hours. In Dakar that window runs 09:00 to 18:00; in Reykjavík it is 09:00 to 18:00. This is the realistic window for live meetings, customer calls, or pair work without forcing either end out of normal hours.

Daylight saving on this route

Neither city observes daylight saving time, so the hour offset on this route is fixed year-round. This makes recurring schedules and calendar invites with collaborators on the other end safer than for DST-observing pairs.

Frequently asked questions

How long is the flight from Dakar to Reykjavík?

The great-circle distance from Dakar to Reykjavík is about 5,507 kilometres. A typical non-stop flight takes around 7.3 hours at standard cruise speed; routes with connections add two to four hours.

What is the time difference between Dakar and Reykjavík?

Dakar and Reykjavík share the same time zone, so there is no clock offset on this route.

Is jet lag worse flying east or west on this route?

No circadian shift is required between these two cities.

Should I take melatonin for the Dakar → Reykjavík trip?

For a shift of 0 hours, melatonin offers little benefit beyond what consistent light exposure already provides. The Cochrane review on jet-lag melatonin shows the strongest effects on shifts of five hours or more.

Do I need a pre-trip schedule shift for Dakar → Reykjavík?

For a shift under two hours, pre-trip adjustment is usually not worth the effort.

What chronotype handles this route best?

Chronotype does not affect adjustment on a same-time-zone route.

Sources

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