City comparison · time difference and converter
London vs Port Harcourt time difference and converter
Port Harcourt is 1 hour ahead of London right now. London sits in United Kingdom on London; Port Harcourt sits in Nigeria on Lagos. They are roughly 5,238 km apart (3,255 mi), a flight of about 7h 10m. London's metro holds around 9.5 million people; Port Harcourt's around 2.1 million.
London
Port Harcourt
Best meeting times today
Open converter →Slot 1
09:00 / 10:00
London / Port Harcourt
Both inside business hoursSlot 2
10:00 / 11:00
London / Port Harcourt
Both inside business hoursSlot 3
11:00 / 12:00
London / Port Harcourt
Both inside business hours24-hour comparison heatmap
Each row is one hour in London. Green rows are inside business hours in both cities; amber means only one side is at their desk; grey rows fall outside business hours in both.
Public holidays in November 2026
National Youth Day
Port Harcourt, Nigeria
Sun, Nov 1
Travel context
Great-circle distance
5,238 km
(3,255 mi)
Approximate flight
7h 10m
850 km/h cruise + 1h taxi/climb/descent
Jet lag
1h
Roughly 1 day to adjust per timezone crossed
Convert any specific time
The heatmap gives you the shape of the day. If you need to convert one specific hour, say a customer call or a release window, open the converter with both cities already loaded.
Open in converter →Frequently asked questions
Working between London and Port Harcourt
The difference between London and Port Harcourt is not really a number, it's a daily rhythm. Port Harcourt is 1 hour ahead of London on the clock today, but the lived version is that Port Harcourt is wrapping up the working day while London is still in the morning, and the overlap people actually use is narrow. That gap, more than the raw offset, is what teams have to design around.
In London, the working day picks up earliest in the financial districts- City of London desks switch on by 07:30 for the European open. The mood in Port Harcourt is its own story: Port Harcourt settles into the evening at the usual hour, with the local commuter pattern setting the pace. If you are scheduling between the two, the heatmap above marks the rows where both patterns line up.
Daylight saving is the other thing to keep an eye on. United Kingdom shifts the clock on the last Sunday of March and October; Nigeria either follows its region's DST pattern or stays put all year. When the two changes are weeks apart, the offset between London and Port Harcourt is one hour off the usual for that stretch, a cliff that catches recurring calendar invites unless your calendar app rebases them automatically. Pin the meeting to a city, not an offset, and the tool handles the rest.
For travellers, the 7h 10m flight is the short version of the story. The longer one is jet lag: roughly one day of adjustment per timezone crossed, which means a trip across the 1-hour gap costs about 1 groggy days on each side. Pilots and cabin crew swear by morning sunlight and an early walk; whatever your routine, the wall-clock numbers above are the source of truth for your first morning in the new city.