Offset
There is no time difference between Greenwich Mean Time and Port Harcourt.
Greenwich Mean Time (BST) is currently the same time as Port Harcourt (WAT).
BST: UTC+1
WAT: UTC+1
Greenwich Mean Time is currently observing daylight saving time; Port Harcourt is not.
When to schedule
Business-hours overlap: 9 AM–5 PM in Greenwich Mean Time (9 AM–5 PM in Port Harcourt).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Greenwich Mean Time (1:00 PM Port Harcourt).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United Kingdom
- Good FridayFri, Apr 3
- Early May Bank HolidayMon, May 4
- Spring Bank HolidayMon, May 25
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
Nigeria
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Workers' DayFri, May 1
- Children's DayWed, May 27
- Democracy DayFri, Jun 12
- National DayThu, Oct 1
- National Youth DaySun, Nov 1
- Christmas DayFri, Dec 25
- Boxing DayMon, Dec 28
About these zones
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
Port Harcourt uses West Africa Time (WAT). To call Nigeria, dial +234.
Port Harcourt is approximately 3,250 miles south of Greenwich Mean Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| GMT | Port Harcourt | Day |
|---|---|---|
| 12:00 am | 12:00 am | Same day |
| 1:00 am | 1:00 am | Same day |
| 2:00 am | 2:00 am | Same day |
| 3:00 am | 3:00 am | Same day |
| 4:00 am | 4:00 am | Same day |
| 5:00 am | 5:00 am | Same day |
| 6:00 am | 6:00 am | Same day |
| 7:00 am | 7:00 am | Same day |
| 8:00 am | 8:00 am | Same day |
| 9:00 am | 9:00 am | Same day |
| 10:00 am | 10:00 am | Same day |
| 11:00 am | 11:00 am | Same day |
| 12:00 pm | 12:00 pm | Same day |
| 1:00 pm | 1:00 pm | Same day |
| 2:00 pm | 2:00 pm | Same day |
| 3:00 pm | 3:00 pm | Same day |
| 4:00 pm | 4:00 pm | Same day |
| 5:00 pm | 5:00 pm | Same day |
| 6:00 pm | 6:00 pm | Same day |
| 7:00 pm | 7:00 pm | Same day |
| 8:00 pm | 8:00 pm | Same day |
| 9:00 pm | 9:00 pm | Same day |
| 10:00 pm | 10:00 pm | Same day |
| 11:00 pm | 11:00 pm | Same day |
Daylight saving time
Greenwich Mean Time observes daylight saving time; Port Harcourt does not. The offset between the two zones changes when Greenwich Mean Time transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:09 AM
- Sunset
- 9:06 PM
- Day length
- 15h 57m
- Sunrise
- 6:28 AM
- Sunset
- 6:50 PM
- Day length
- 12h 21m
Daylight overlap: 12h 21m — 6:28 AM–6:50 PM in Greenwich Mean Time (6:28 AM–6:50 PM in Port Harcourt). Both locations are in daylight during this window.
Cities in these zones
Cities in Greenwich Mean Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Greenwich Mean Time
- LCY
- LGW
- LHR
- LTN
- STN
- BHX
- EMA
- GLA
- PIK
- LBA
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Related conversions
Common conversions
- What is 9:00 am GMT in Port Harcourt?
- 9:00 am GMT is 9:00 am Port Harcourt.
- What is 12:00 pm GMT in Port Harcourt?
- 12:00 pm GMT is 12:00 pm Port Harcourt.
- What is 12:30 pm GMT in Port Harcourt?
- 12:30 pm GMT is 12:30 pm Port Harcourt.
- What is 2:00 pm GMT in Port Harcourt?
- 2:00 pm GMT is 2:00 pm Port Harcourt.
- What is 5:00 pm GMT in Port Harcourt?
- 5:00 pm GMT is 5:00 pm Port Harcourt.
- What is 11:30 pm GMT in Port Harcourt?
- 11:30 pm GMT is 11:30 pm Port Harcourt.