Offset
The time difference between Port Harcourt and Mumbai is 4.5 hours.
Port Harcourt (WAT) is behind Mumbai (IST).
WAT: UTC+1
IST: UTC+5:30
Neither Port Harcourt nor Mumbai is currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–1 PM in Port Harcourt (1 PM–5 PM in Mumbai).
Both teams are in working hours during this window on weekdays.
Suggested time: 11:00 AM Port Harcourt (3:30 PM Mumbai).
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.
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
Port Harcourt uses West Africa Time (WAT). To call Nigeria, dial +234.
Mumbai uses India Standard Time (IST). To call India, dial +91.
Mumbai is approximately 4,550 miles east of Port Harcourt.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Port Harcourt | Mumbai | Day |
|---|---|---|
| 12:00 am | 4:30 am | Same day |
| 1:00 am | 5:30 am | Same day |
| 2:00 am | 6:30 am | Same day |
| 3:00 am | 7:30 am | Same day |
| 4:00 am | 8:30 am | Same day |
| 5:00 am | 9:30 am | Same day |
| 6:00 am | 10:30 am | Same day |
| 7:00 am | 11:30 am | Same day |
| 8:00 am | 12:30 pm | Same day |
| 9:00 am | 1:30 pm | Same day |
| 10:00 am | 2:30 pm | Same day |
| 11:00 am | 3:30 pm | Same day |
| 12:00 pm | 4:30 pm | Same day |
| 1:00 pm | 5:30 pm | Same day |
| 2:00 pm | 6:30 pm | Same day |
| 3:00 pm | 7:30 pm | Same day |
| 4:00 pm | 8:30 pm | Same day |
| 5:00 pm | 9:30 pm | Same day |
| 6:00 pm | 10:30 pm | Same day |
| 7:00 pm | 11:30 pm | Same day |
| 8:00 pm | 12:30 am | +1 day |
| 9:00 pm | 1:30 am | +1 day |
| 10:00 pm | 2:30 am | +1 day |
| 11:00 pm | 3:30 am | +1 day |
Daylight saving time
Neither Port Harcourt nor Mumbai observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:28 AM
- Sunset
- 6:50 PM
- Day length
- 12h 21m
- Sunrise
- 6:12 AM
- Sunset
- 7:19 PM
- Day length
- 13h 7m
Daylight overlap: 8h 21m — 6:28 AM–2:49 PM in Port Harcourt (10:58 AM–7:19 PM in Mumbai). Both locations are in daylight during this window.
Cities in these zones
Other cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Related conversions
Common conversions
- What is 9:00 am Port Harcourt in Mumbai?
- 9:00 am Port Harcourt is 1:30 pm Mumbai.
- What is 12:00 pm Port Harcourt in Mumbai?
- 12:00 pm Port Harcourt is 4:30 pm Mumbai.
- What is 12:30 pm Port Harcourt in Mumbai?
- 12:30 pm Port Harcourt is 5:00 pm Mumbai.
- What is 2:00 pm Port Harcourt in Mumbai?
- 2:00 pm Port Harcourt is 6:30 pm Mumbai.
- What is 5:00 pm Port Harcourt in Mumbai?
- 5:00 pm Port Harcourt is 9:30 pm Mumbai.
- What is 11:30 pm Port Harcourt in Mumbai?
- 11:30 pm Port Harcourt is 4:00 am Mumbai, the next day.