Tehran time to New York time
New York is 8.5 hours behind Tehran in January and 7.5 hours behind in July (Tehran GMT+3:30/UTC+03:30 in summer; New York GMT-4/UTC−04:00). Enter a Tehran time below to convert it, or leave it blank to see the current time in both cities.
How to use the Tehran to New York time
- Type a Tehran time (24-hour) and optionally a date, or leave blank for now.
- Click Convert.
- Read the New York time and the working-hours table.
Time difference between Tehran and New York
New York is 8.5 hours behind Tehran in January and 7.5 hours behind in July. New York observes daylight saving time and Tehran does not, so the difference changes twice a year. Tehran uses Asia/Tehran time (UTC+03:30 in January, UTC+03:30 in July); New York uses America/New York (UTC−05:00 in January, UTC−04:00 in July).
Working week in Tehran and New York
Tehran: Iran Standard Time, UTC+3:30 all year (daylight saving was abolished in 2022). Weekend is Friday, with Thursday a half day for many; the week starts Saturday.
New York: Office hours 09:00–17:00, weekend Saturday–Sunday. Eastern Time: EDT (UTC−4) from the second Sunday of March to the first Sunday of November, otherwise EST (UTC−5).
Quick conversion table (summer difference)
| Tehran | New York |
|---|---|
| 08:00 | 00:30 |
| 09:00 | 01:30 |
| 10:00 | 02:30 |
| 12:00 | 04:30 |
| 14:00 | 06:30 |
| 16:00 | 08:30 |
| 18:00 | 10:30 |
| 20:00 | 12:30 |
| 22:00 | 14:30 |
Table uses the July difference; the tool above applies the exact rule for any date.
Best time to call between Tehran and New York
Within normal office hours (09:00–18:00) in both cities: 17:00–17:00 Tehran time. For a compromise outside that window, the fairest slots are the ones nearest each side's start or end of day, alternating who takes the inconvenient hour.
Reverse
Need the other direction? See New York to Tehran, or the general time zone converter.
Frequently asked questions
How many hours ahead is New York from Tehran?
New York is 8.5 hours behind Tehran in January and 7.5 hours behind in July.
When it is 12:00 noon in Tehran, what time is it in New York?
04:30 in summer (the same or previous day); use the tool for a specific date.
Does the converter handle daylight saving?
Yes, for the exact date you enter, using the IANA time-zone rules in your browser.
Privacy
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Last updated 2026-09-23.