Does New York observe daylight saving time?

Yes. New York is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).

Does Tehran observe daylight saving time?

No. Tehran stays on IRST (UTC+3:30) all year, so its clocks don't change.

What time is it in Tehran when it's 9 AM in New York?

4:30 PM in Tehran, on the same day.

New York to Tehran Meeting Planner

Tehran is 7 hours 30 minutes ahead of New York right now. Their working days overlap for 30 minutes today.

New York · United States

1:22 AM

Sat, Oct 17 · EDT · summer time

Tehran · Iran

8:52 AM

Sat, Oct 17 · IRST

Best Meeting Times Between New York and Tehran

9:00 AM to 9:30 AM in New York (4:30 PM to 5:00 PM in Tehran). That's when both cities are inside working hours, 9 AM to 5 PM, giving 30 minutes of overlap today.

Who's meeting

2 of 4 places

New YorkOrganizerUnited States ·· summer time1:22AMnow
TehranIran ·8:52AMnow

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in New York

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in New York time.

9:00AMBest · OptimalWorking hours in New York (09:00) and Tehran (16:30).
12:00PMOption 2 · GoodWorking hours in New York (12:00); just outside working hours in Tehran (19:30).
11:30AMOption 3 · GoodWorking hours in New York (11:30); just outside working hours in Tehran (19:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a half hour of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
New YorkEDT
TehranUTC+3:30
UTC	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

New York9:00 AM EDTSat, Oct 17
Tehran4:30 PM UTC+3:30Sat, Oct 17
UTC2026-10-17 13:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between New York and Tehran

Tehran is 7 hours 30 minutes ahead of New York right now: Tehran is on IRST (UTC+3:30) and New York on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in New York: then Tehran is 8 hours 30 minutes ahead of New York.

Time difference between New York and Tehran over the next 12 months
From	Difference	Why
Now	Tehran 7 hours 30 minutes ahead	—
Sun, Nov 1	Tehran 8 hours 30 minutes ahead	Clocks go back in New York
Sun, Mar 14, 2027	Tehran 7 hours 30 minutes ahead	Clocks go forward in New York

New York is on Eastern Standard Time. Tehran is on Iran Standard Time.

Frequently Asked Questions: New York & Tehran Scheduling

What is the time difference between New York and Tehran?: Tehran is 7 hours 30 minutes ahead of New York right now: Tehran is on IRST (UTC+3:30) and New York on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in New York: then Tehran is 8 hours 30 minutes ahead of New York.
What is the best time to schedule a meeting between New York and Tehran?: 9:00 AM to 9:30 AM in New York (4:30 PM to 5:00 PM in Tehran). That's when both cities are inside working hours, 9 AM to 5 PM, giving 30 minutes of overlap today.
Does New York observe daylight saving time?: Yes. New York is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).
Does Tehran observe daylight saving time?: No. Tehran stays on IRST (UTC+3:30) all year, so its clocks don't change.
What time is it in Tehran when it's 9 AM in New York?: 4:30 PM in Tehran, on the same day.

Or see every city pair, or plan with more places in the meeting planner.