Iran to Nigeria
-2h 30mIran
IRSTSOURCENigeria
WATGreen rows indicate typical business hours (9 AM - 5 PM)
IRST and WAT on the World Map
The map below highlights the IRST (Iran Standard Time) and WAT (West Africa Time) timezone regions across the globe.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
WAT – West Africa Time
UTC+01:00West Africa Time (WAT) is the time zone for West and Central Africa, 1 hour ahead of UTC.
- •Lagos, Nigeria is the most populous city in Africa.
- •WAT is the same offset as CET (UTC+01:00).
- •Nigeria does not observe daylight saving time.
Everything You Need to Know About Iran and Nigeria Time
Iran runs on Iran Standard Time (IRST) at UTC+03:30. Nigeria runs on West Africa Time (WAT) at UTC+01:00. That puts Iran 2 hours 30 minutes behind Nigeria — a difference of -2h 30m at the current offsets.
In practice, when it is 9:00 AM in Iran it is 6:30 AM in Nigeria. Midnight in Iran is 9:30 PM in Nigeria. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Iran to Nigeria time conversion table
| Iran (IRST) | Nigeria (WAT) | Day |
|---|---|---|
| 12:00 AM | 9:30 PM | previous day |
| 6:00 AM | 3:30 AM | same day |
| 7:00 AM | 4:30 AM | same day |
| 8:00 AM | 5:30 AM | same day |
| 9:00 AM | 6:30 AM | same day |
| 12:00 PM | 9:30 AM | same day |
| 3:00 PM | 12:30 PM | same day |
| 5:00 PM | 2:30 PM | same day |
| 6:00 PM | 3:30 PM | same day |
| 9:00 PM | 6:30 PM | same day |
Why people convert Iran to Nigeria time
- Scheduling a call from Iran to Nigeria: a 10:00 AM start in Iran lands at 7:30 AM in Nigeria, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Iran and Nigeria are inside the 9-to-5 working day between 11:30 AM and 5:00 PM IRST time (9:00 AM–2:30 PM WAT). That is roughly 5 hours 30 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Iran is 5:30 PM in Nigeria makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -2h 30m gap is not.
- Block 11:30 AM–5:00 PM IRST as the recurring meeting window if you work primarily from Iran and need Nigeria colleagues present.
About IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
About WAT (West Africa Time)
West Africa Time (WAT) is used across much of West and Central Africa, including Nigeria, the most populous country in Africa. WAT does not observe daylight saving time and shares the same offset as Central European Time (CET).
Best time to call between Iran and Nigeria
Both Iran and Nigeria sit inside the 9 AM – 5 PM working day between 11:30 AM–5:00 PM IRST, which is 9:00 AM–2:30 PM WAT. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Iran and Nigeria share 5 hours of working-hours overlap (11:30 AM–5:00 PM IRST), so scheduling a live meeting is straightforward.
Iran is 2 hours 30 minutes behind Nigeria (IRST UTC+03:30 → WAT UTC+01:00). The shared working window is 11:30 AM–5:00 PM IRST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Iran and Nigeria?
Iran (IRST, UTC+03:30) is 2 hours 30 minutes behind Nigeria (WAT, UTC+01:00). The gap is currently -2h 30m.
How do I convert Iran time to Nigeria time?
Add -2h 30m to Iran local time. For example, 9:00 AM in Iran is 6:30 AM in Nigeria.
What time is it in Nigeria right now?
Nigeria uses WAT at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 30m offset from Iran.
What is the best time to call Nigeria from Iran?
Call between 11:30 AM and 5:00 PM IRST — that maps to 9:00 AM–2:30 PM WAT and keeps both parties inside the working day.
Which is behind, Iran or Nigeria?
Iran is 2 hours 30 minutes behind Nigeria. When it is 12:00 PM in Iran it is 9:30 AM in Nigeria.
Do Iran and Nigeria use different time zones?
Iran (Iran) uses IRST at UTC+03:30, while Nigeria (Nigeria) uses WAT at UTC+01:00. The IANA identifiers are Asia/Tehran and Africa/Lagos.
Does daylight saving time affect the Iran–Nigeria difference?
Neither zone observes daylight saving time, so the -2h 30m offset between Iran and Nigeria is fixed all year.
Which other cities share Iran's time zone?
IRST also covers Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
Which countries use IRST, Iran's zone?
IRST is used in Iran.
Is there a day difference between Iran and Nigeria?
Not normally. The -2h 30m gap only pushes the date over the previous day.
What is the time difference between Iran and Nigeria?
Nigeria is -2h 30m from Iran.
What timezone is Iran in?
Iran operates on its local timezone.
What timezone is Nigeria in?
Nigeria operates on its local timezone.
Which countries use IRST (Iran Standard Time)?
IRST is used in Iran.
Does IRST observe daylight saving time?
Yes, IRST switches to IRDT during summer months.
What are some interesting facts about IRST?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
Which cities are in the WAT timezone?
Major cities in the WAT timezone include Lagos, Abuja, Douala, Yaoundé, Luanda, Kinshasa, Brazzaville.
What is the UTC offset for WAT?
West Africa Time (WAT) is at UTC+01:00.
What should I know about the WAT timezone?
Lagos, Nigeria is the most populous city in Africa. WAT is the same offset as CET (UTC+01:00).
When is it midnight in Iran, what time is it in Nigeria?
When it is 12:00 AM (midnight) in Iran (IRST), it is -2h 30m later in Nigeria (WAT).
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