What is the time difference between Tehran and New York?

New York is 7 hours 30 minutes behind Tehran. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call New York from Tehran?

Between 16:30–18:00 in Tehran, which is 09:00–10:30 in New York. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Tehran observe daylight saving time?

No. Tehran stays on UTC+3:30 all year, so its clocks never move.

Does New York observe daylight saving time?

Yes. New York runs on UTC-5 in winter and UTC-4 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Tehran, what time is it in New York?

It is 04:30 in New York, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Tehran and New York use?

Tehran uses Asia/Tehran, currently UTC+3:30, and New York uses America/New_York, currently UTC-4 (EDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Tehran time to New York time

Right now New York runs 7 hours 30 minutes behind Tehran. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in Tehran, and what the clock reads in New York at that same moment.

Tehran	New York
00:00	16:30previous day
01:00	17:30previous day
02:00	18:30previous day
03:00	19:30previous day
04:00	20:30previous day
05:00	21:30previous day
06:00	22:30previous day
07:00	23:30previous day
08:00	00:30
09:00	01:30
10:00	02:30
11:00	03:30
12:00	04:30
13:00	05:30
14:00	06:30
15:00	07:30
16:00	08:30
17:00	09:30
18:00	10:30
19:00	11:30
20:00	12:30
21:00	13:30
22:00	14:30
23:00	15:30

Daylight saving time

Tehran keeps one offset all year while New York moves twice. That is the whole reason this difference is seasonal.

Tehran

Does not observe daylight saving time

Standard: UTC+3:30

New York

Observes daylight saving time

Standard: UTC-5
Daylight: UTC-4
Next change: 2026-11-01 −60m

When you can actually talk

You have 1 hour 30 minutes of shared working time: 16:30–18:00 in Tehran, which is 09:00–10:30 in New York.

Tehran 16:30–18:00New York 09:00–10:30

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Tehran	New York
IANA zone	Asia/Tehran	America/New_York
Abbreviation	UTC+3:30	EDT
Standard offset	UTC+3:30	UTC-5
Daylight offset	—	UTC-4
Clock changes this year	0	2
Country	Iran	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Tehran and New York?: New York is 7 hours 30 minutes behind Tehran. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call New York from Tehran?: Between 16:30–18:00 in Tehran, which is 09:00–10:30 in New York. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Tehran observe daylight saving time?: No. Tehran stays on UTC+3:30 all year, so its clocks never move.
Does New York observe daylight saving time?: Yes. New York runs on UTC-5 in winter and UTC-4 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Tehran, what time is it in New York?: It is 04:30 in New York, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Tehran and New York use?: Tehran uses Asia/Tehran, currently UTC+3:30, and New York uses America/New_York, currently UTC-4 (EDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.