Offset
The time difference between Istanbul and Onitsha is 2 hours.
Istanbul (TRT) is ahead of Onitsha (WAT).
TRT: UTC+3
WAT: UTC+1
Neither Istanbul nor Onitsha is currently observing daylight saving time.
When to schedule
Business-hours overlap: 11 AM–5 PM in Istanbul (9 AM–3 PM in Onitsha).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Istanbul (12:00 PM Onitsha).
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.
Turkey
- New Year's DayThu, Jan 1
- National Independence & Children's DayThu, Apr 23
- Labour DayFri, May 1
- Atatürk Commemoration & Youth DayTue, May 19
- Democracy and National Unity DayWed, Jul 15
- Victory DaySun, Aug 30
- Republic DayThu, Oct 29
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
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Istanbul | Onitsha | Day |
|---|---|---|
| 12:00 am | 10:00 pm | -1 day |
| 1:00 am | 11:00 pm | -1 day |
| 2:00 am | 12:00 am | Same day |
| 3:00 am | 1:00 am | Same day |
| 4:00 am | 2:00 am | Same day |
| 5:00 am | 3:00 am | Same day |
| 6:00 am | 4:00 am | Same day |
| 7:00 am | 5:00 am | Same day |
| 8:00 am | 6:00 am | Same day |
| 9:00 am | 7:00 am | Same day |
| 10:00 am | 8:00 am | Same day |
| 11:00 am | 9:00 am | Same day |
| 12:00 pm | 10:00 am | Same day |
| 1:00 pm | 11:00 am | Same day |
| 2:00 pm | 12:00 pm | Same day |
| 3:00 pm | 1:00 pm | Same day |
| 4:00 pm | 2:00 pm | Same day |
| 5:00 pm | 3:00 pm | Same day |
| 6:00 pm | 4:00 pm | Same day |
| 7:00 pm | 5:00 pm | Same day |
| 8:00 pm | 6:00 pm | Same day |
| 9:00 pm | 7:00 pm | Same day |
| 10:00 pm | 8:00 pm | Same day |
| 11:00 pm | 9:00 pm | Same day |
Daylight saving time
Neither Istanbul nor Onitsha 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
- 5:33 AM
- Sunset
- 8:36 PM
- Day length
- 15h 4m
- Sunrise
- 6:19 AM
- Sunset
- 6:47 PM
- Day length
- 12h 28m
Daylight overlap: 12h 17m — 8:19 AM–8:36 PM in Istanbul (6:19 AM–6:36 PM in Onitsha). Both locations are in daylight during this window.
Cities in these zones
Other cities in Turkey Time
Other cities in West Africa Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Turkey Time
- IST
- SAW
- ESB
- YEI
- ADB
- GZT
- DIY
- ADA
- COV
- ASR
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Related conversions
Common conversions
- What is 9:00 am Istanbul in Onitsha?
- 9:00 am Istanbul is 7:00 am Onitsha.
- What is 12:00 pm Istanbul in Onitsha?
- 12:00 pm Istanbul is 10:00 am Onitsha.
- What is 12:30 pm Istanbul in Onitsha?
- 12:30 pm Istanbul is 10:30 am Onitsha.
- What is 2:00 pm Istanbul in Onitsha?
- 2:00 pm Istanbul is 12:00 pm Onitsha.
- What is 5:00 pm Istanbul in Onitsha?
- 5:00 pm Istanbul is 3:00 pm Onitsha.
- What is 11:30 pm Istanbul in Onitsha?
- 11:30 pm Istanbul is 9:30 pm Onitsha.