Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

WAT to Tehran

+2h 30m

WAT

WATSOURCE

UTC+01:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Tehran

IRST

Iran · UTC+03:30

HH02

MM30

14:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

WAT

Tehran

12:00 AM

2:30 AM

2:00 AM

4:30 AM

4:00 AM

6:30 AM

6:00 AM

8:30 AM

8:00 AM

10:30 AM

10:00 AM

12:30 PM

12:00 PM

2:30 PM

2:00 PM

4:30 PM

4:00 PM

6:30 PM

6:00 PM

8:30 PM

8:00 PM

10:30 PM

10:00 PM

12:30 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

WAT and IRST on the World Map

The map below highlights the WAT (West Africa Time) and IRST (Iran Standard Time) timezone regions across the globe.

WAT Zone

→

IRST Zone

Explore all world timezones interactively →

WAT – West Africa Time

UTC+01:00

West Africa Time (WAT) is the time zone for West and Central Africa, 1 hour ahead of UTC.

Countries in WAT

NigeriaCameroonChadCongoAngolaNigerGabonEquatorial Guinea

Major Cities in WAT

LagosAbujaDoualaYaoundéLuandaKinshasaBrazzaville

Key Facts about WAT

•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.

Daylight Saving:No – UTC+01:00 year-round

Learn more about WAT on Wikipedia

IRST – Iran Standard Time

UTC+03:30

Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.

Countries in IRST

Iran

Major Cities in IRST

TehranIsfahanMashhadTabrizShirazKaraj

Key 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).
•Tehran has a metropolitan population of over 16 million.

Daylight Saving:Yes – switches to IRDT

Learn more about IRST on Wikipedia

About Tehran

Wikipedia

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.

Population:9.4 million

Metro:16.8 million

Business Hours:8:00 AM - 4:00 PM IRST

Currency:IRR (﷼)

Stock Exchange:TSE (Tehran Stock Exchange)

Key Landmarks

Azadi TowerGolestan PalaceGrand BazaarMilad TowerTabiat Bridge

Did You Know?

Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).

Learn more about IRST timezone →

Time Conversion Guide: WAT to Tehran

WAT runs on West Africa Time (WAT) at UTC+01:00. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts WAT 2 hours 30 minutes ahead of Tehran — a difference of +2h 30m at the current offsets.

In practice, when it is 9:00 AM in WAT it is 11:30 AM in Tehran. Midnight in WAT is 2:30 AM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

WAT to Tehran time conversion table

WAT (WAT)	Tehran (IRST)	Day
12:00 AM	2:30 AM	same day
6:00 AM	8:30 AM	same day
7:00 AM	9:30 AM	same day
8:00 AM	10:30 AM	same day
9:00 AM	11:30 AM	same day
12:00 PM	2:30 PM	same day
3:00 PM	5:30 PM	same day
5:00 PM	7:30 PM	same day
6:00 PM	8:30 PM	same day
9:00 PM	11:30 PM	same day

Why people convert WAT to Tehran time

Scheduling a call from WAT to Tehran: a 10:00 AM start in WAT lands at 12:30 PM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both WAT and Tehran are inside the 9-to-5 working day between 9:00 AM and 2:30 PM WAT time (11:30 AM–5:00 PM IRST). That is roughly 5 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking Tehran local time against WAT keeps pickup windows and arrival estimates honest across the +2h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM WAT" is unambiguous; "3 PM" across a +2h 30m gap is not.
Block 9:00 AM–2:30 PM WAT as the recurring meeting window if you work primarily from WAT and need Tehran colleagues present.

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).

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.

Best time to call between WAT and Tehran

Both WAT and Tehran sit inside the 9 AM – 5 PM working day between 9:00 AM–2:30 PM WAT, which is 11:30 AM–5:00 PM IRST. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

WAT and Tehran share 5 hours of working-hours overlap (9:00 AM–2:30 PM WAT), so scheduling a live meeting is straightforward.

WAT is 2 hours 30 minutes ahead of Tehran (WAT UTC+01:00 → IRST UTC+03:30). The shared working window is 9:00 AM–2:30 PM WAT. 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between WAT and Tehran?

WAT (WAT, UTC+01:00) is 2 hours 30 minutes ahead of Tehran (IRST, UTC+03:30). The gap is currently +2h 30m.

How do I convert WAT time to Tehran time?

Add +2h 30m to WAT local time. For example, 9:00 AM in WAT is 11:30 AM in Tehran.

What time is it in Tehran right now?

Tehran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h 30m offset from WAT.

What is the best time to call Tehran from WAT?

Call between 9:00 AM and 2:30 PM WAT — that maps to 11:30 AM–5:00 PM IRST and keeps both parties inside the working day.

Which is ahead, WAT or Tehran?

WAT is 2 hours 30 minutes ahead of Tehran. When it is 12:00 PM in WAT it is 2:30 PM in Tehran.

Do WAT and Tehran use different time zones?

WAT uses WAT at UTC+01:00, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are Africa/Lagos and Asia/Tehran.

Does daylight saving time affect the WAT–Tehran difference?

Neither zone observes daylight saving time, so the +2h 30m offset between WAT and Tehran is fixed all year.

Which other cities share WAT's time zone?

WAT also covers Lagos, Abuja, Douala, Yaoundé, Luanda, Kinshasa, Brazzaville.

Which countries use WAT, WAT's zone?

WAT is used in Nigeria, Cameroon, Chad, Congo, Angola, Niger, Gabon, Equatorial Guinea.

Is there a day difference between WAT and Tehran?

Not normally. The +2h 30m gap only pushes the date over for late-evening times.

What is the time difference between WAT and Tehran?

Tehran is +2h 30m from WAT.

What timezone is WAT in?

WAT operates on its local timezone.

What timezone is Tehran in?

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.