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.

EDT to Iran

+7h 30m

EDT

EDTSOURCE

UTC-04:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Iran

IRST

UTC+03:30

HH07

MM30

19:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

EDT

Iran

12:00 AM

7:30 AM

2:00 AM

9:30 AM

4:00 AM

11:30 AM

6:00 AM

1:30 PM

8:00 AM

3:30 PM

10:00 AM

5:30 PM

12:00 PM

7:30 PM

2:00 PM

9:30 PM

4:00 PM

11:30 PM

6:00 PM

1:30 AM+1

8:00 PM

3:30 AM+1

10:00 PM

5:30 AM+1

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

EDT and IRST on the World Map

The map below highlights the EDT (Eastern Daylight Time) and IRST (Iran Standard Time) timezone regions across the globe.

EDT Zone

→

IRST Zone

Explore all world timezones interactively →

EDT – Eastern Daylight Time

UTC-04:00

Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.

Countries in EDT

United States (Eastern)Canada (Ontario, Quebec)BahamasHaitiTurks and Caicos

Major Cities in EDT

New York CityWashington D.C.TorontoMiamiPhiladelphiaAtlantaBostonMontreal

Key Facts about EDT

•EDT is observed from the second Sunday of March to the first Sunday of November.
•During EDT, the US East Coast is only 4 hours behind London (instead of 5).
•Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.

Daylight Saving:Yes – switches to EST

Learn more about EDT 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

EDT to Iran Time Difference – Complete Guide

EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. Iran runs on Iran Standard Time (IRST) at UTC+03:30. That puts EDT 7 hours 30 minutes ahead of Iran — a difference of +7h 30m at the current offsets.

In practice, when it is 9:00 AM in EDT it is 4:30 PM in Iran. Midnight in EDT is 7:30 AM in Iran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

EDT to Iran time conversion table

EDT (EDT)	Iran (IRST)	Day
12:00 AM	7:30 AM	same day
6:00 AM	1:30 PM	same day
7:00 AM	2:30 PM	same day
8:00 AM	3:30 PM	same day
9:00 AM	4:30 PM	same day
12:00 PM	7:30 PM	same day
3:00 PM	10:30 PM	same day
5:00 PM	12:30 AM	next day
6:00 PM	1:30 AM	next day
9:00 PM	4:30 AM	next day

Why people convert EDT to Iran time

Scheduling a call from EDT to Iran: a 10:00 AM start in EDT lands at 5:30 PM in Iran, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both EDT and Iran are inside the 9-to-5 working day between 9:00 AM and 9:30 AM EDT time (4:30 PM–5:00 PM IRST). That is roughly 0 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking Iran local time against EDT keeps pickup windows and arrival estimates honest across the +7h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a +7h 30m gap is not.
Block 9:00 AM–9:30 AM EDT as the recurring meeting window if you work primarily from EDT and need Iran colleagues present.

About EDT (Eastern Daylight Time)

Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.

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 EDT and Iran

Both EDT and Iran sit inside the 9 AM – 5 PM working day between 9:00 AM–9:30 AM EDT, which is 4:30 PM–5:00 PM IRST. That gives roughly 0 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

EDT and Iran overlap for only 30 minutes (9:00 AM–9:30 AM EDT), so meetings have to be booked precisely.

EDT is 7 hours 30 minutes ahead of Iran (EDT UTC-04:00 → IRST UTC+03:30). The shared working window is 9:00 AM–9:30 AM EDT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

EDT

☀ Currently in DST

Standard: UTC-05:00 · DST: UTC-04:00

Clocks fall back on Sun, Nov 1, 2026

Iran

Does not observe DST

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 EDT and Iran?

EDT (EDT, UTC-04:00) is 7 hours 30 minutes ahead of Iran (IRST, UTC+03:30). The gap is currently +7h 30m.

How do I convert EDT time to Iran time?

Add +7h 30m to EDT local time. For example, 9:00 AM in EDT is 4:30 PM in Iran.

What time is it in Iran right now?

Iran 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 +7h 30m offset from EDT.

What is the best time to call Iran from EDT?

Call between 9:00 AM and 9:30 AM EDT — that maps to 4:30 PM–5:00 PM IRST and keeps both parties inside the working day.

Which is ahead, EDT or Iran?

EDT is 7 hours 30 minutes ahead of Iran. When it is 12:00 PM in EDT it is 7:30 PM in Iran.

Do EDT and Iran use different time zones?

EDT uses EDT at UTC-04:00, while Iran (Iran) uses IRST at UTC+03:30. The IANA identifiers are America/New_York and Asia/Tehran.

Does daylight saving time affect the EDT–Iran difference?

Neither zone observes daylight saving time, so the +7h 30m offset between EDT and Iran is fixed all year.

Which other cities share EDT's time zone?

EDT also covers New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.

Which countries use EDT, EDT's zone?

EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.

Is there a day difference between EDT and Iran?

Not normally. The +7h 30m gap only pushes the date over for late-evening times.

What is the time difference between EDT and Iran?

Iran is +7h 30m from EDT.

What timezone is EDT in?

EDT operates on its local timezone.

What timezone is Iran in?

Iran operates on its local timezone.

Which countries use EDT (Eastern Daylight Time)?

EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.

Does EDT observe daylight saving time?

Yes, EDT switches to EST during summer months.

What are some interesting facts about EDT?

EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).