Offset
The time difference between Mumbai and Port Harcourt is 4.5 hours.
Mumbai (IST) is ahead of Port Harcourt (WAT).
IST: UTC+5:30
WAT: UTC+1
Neither Mumbai nor Port Harcourt is currently observing daylight saving time.
When to schedule
Business-hours overlap: 2 PM–5 PM in Mumbai (9 AM–12 PM in Port Harcourt).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Mumbai (10:30 AM Port Harcourt).
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
Mumbai uses India Standard Time (IST). To call India, dial +91.
Port Harcourt uses West Africa Time (WAT). To call Nigeria, dial +234.
Port Harcourt is approximately 4,550 miles west of Mumbai.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Mumbai | Port Harcourt | Day |
|---|---|---|
| 12:00 am | 7:30 pm | -1 day |
| 1:00 am | 8:30 pm | -1 day |
| 2:00 am | 9:30 pm | -1 day |
| 3:00 am | 10:30 pm | -1 day |
| 4:00 am | 11:30 pm | -1 day |
| 5:00 am | 12:30 am | Same day |
| 6:00 am | 1:30 am | Same day |
| 7:00 am | 2:30 am | Same day |
| 8:00 am | 3:30 am | Same day |
| 9:00 am | 4:30 am | Same day |
| 10:00 am | 5:30 am | Same day |
| 11:00 am | 6:30 am | Same day |
| 12:00 pm | 7:30 am | Same day |
| 1:00 pm | 8:30 am | Same day |
| 2:00 pm | 9:30 am | Same day |
| 3:00 pm | 10:30 am | Same day |
| 4:00 pm | 11:30 am | Same day |
| 5:00 pm | 12:30 pm | Same day |
| 6:00 pm | 1:30 pm | Same day |
| 7:00 pm | 2:30 pm | Same day |
| 8:00 pm | 3:30 pm | Same day |
| 9:00 pm | 4:30 pm | Same day |
| 10:00 pm | 5:30 pm | Same day |
| 11:00 pm | 6:30 pm | Same day |
Daylight saving time
Neither Mumbai nor Port Harcourt 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
- 6:13 AM
- Sunset
- 7:18 PM
- Day length
- 13h 5m
- Sunrise
- 6:28 AM
- Sunset
- 6:50 PM
- Day length
- 12h 21m
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 India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Related conversions
Common conversions
- What is 9:00 am Mumbai in Port Harcourt?
- 9:00 am Mumbai is 4:30 am Port Harcourt.
- What is 12:00 pm Mumbai in Port Harcourt?
- 12:00 pm Mumbai is 7:30 am Port Harcourt.
- What is 12:30 pm Mumbai in Port Harcourt?
- 12:30 pm Mumbai is 8:00 am Port Harcourt.
- What is 2:00 pm Mumbai in Port Harcourt?
- 2:00 pm Mumbai is 9:30 am Port Harcourt.
- What is 5:00 pm Mumbai in Port Harcourt?
- 5:00 pm Mumbai is 12:30 pm Port Harcourt.
- What is 11:30 pm Mumbai in Port Harcourt?
- 11:30 pm Mumbai is 7:00 pm Port Harcourt.