What is the time difference between New York and Tehran?

Tehran is 7 hours 30 minutes ahead of New York. 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 Tehran from New York?

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

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.

Does Tehran observe daylight saving time?

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

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

It is 19:30 in Tehran, 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 New York and Tehran use?

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

Convert New York time to Tehran time

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

Convert a time

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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 New York, and what the clock reads in Tehran at that same moment.

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

Daylight saving time

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

New York

Observes daylight saving time

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

Tehran

Does not observe daylight saving time

Standard: UTC+3:30

When you can actually talk

The window is 1 hour 30 minutes wide — 09:00–10:30 in New York, 16:30–18:00 in Tehran.

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

Reference

The zone identifiers and offsets behind everything above.

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

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

Common questions

What is the time difference between New York and Tehran?: Tehran is 7 hours 30 minutes ahead of New York. 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 Tehran from New York?: Between 09:00–10:30 in New York, which is 16:30–18:00 in Tehran. That is the only stretch where both cities are inside a 09:00–18:00 day.
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.
Does Tehran observe daylight saving time?: No. Tehran stays on UTC+3:30 all year, so its clocks never move.
If it is midday in New York, what time is it in Tehran?: It is 19:30 in Tehran, 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 New York and Tehran use?: New York uses America/New_York, currently UTC-4 (EDT), and Tehran uses Asia/Tehran, currently UTC+3:30. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.