Iran to WAT
-2h 30mIran
IRSTSOURCEWAT
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.
Iran vs WAT: Offsets, DST and Best Call Times
Iran runs on Iran Standard Time (IRST) at UTC+03:30. WAT runs on West Africa Time (WAT) at UTC+01:00. That puts Iran 2 hours 30 minutes behind WAT — 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 WAT. Midnight in Iran is 9:30 PM in WAT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Iran to WAT time conversion table
| Iran (IRST) | WAT (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 WAT time
- Scheduling a call from Iran to WAT: a 10:00 AM start in Iran lands at 7:30 AM in WAT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Iran and WAT 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.
- Coordinating a Iran-based team with WAT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- 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 WAT 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 WAT
Both Iran and WAT 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 WAT 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 WAT (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 WAT?
Iran (IRST, UTC+03:30) is 2 hours 30 minutes behind WAT (WAT, UTC+01:00). The gap is currently -2h 30m.
How do I convert Iran time to WAT time?
Add -2h 30m to Iran local time. For example, 9:00 AM in Iran is 6:30 AM in WAT.
What time is it in WAT right now?
WAT 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 WAT 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 WAT?
Iran is 2 hours 30 minutes behind WAT. When it is 12:00 PM in Iran it is 9:30 AM in WAT.
Do Iran and WAT use different time zones?
Iran (Iran) uses IRST at UTC+03:30, while WAT uses WAT at UTC+01:00. The IANA identifiers are Asia/Tehran and Africa/Lagos.
Does daylight saving time affect the Iran–WAT difference?
Neither zone observes daylight saving time, so the -2h 30m offset between Iran and WAT 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 WAT?
Not normally. The -2h 30m gap only pushes the date over the previous day.
What is the time difference between Iran and WAT?
WAT is -2h 30m from Iran.
What timezone is Iran in?
Iran operates on its local timezone.
What timezone is WAT in?
WAT 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 WAT?
When it is 12:00 AM (midnight) in Iran (IRST), it is -2h 30m later in WAT (WAT).
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