What is the time difference between New York and Tehran?

Tehran is 8 hours 30 minutes ahead of New York during standard time. This may change by up to 1 hour when daylight saving time is active.

When is the best time to schedule a call between New York and Tehran?

The best times to connect are 9:00 AM EST, when both regions are within standard business hours.

New York to Tehran Time Converter — EST to GMT+3:30, 8 hours 30 minutes difference

24-Hour Overlap Timeline

✅ Overlap: 9:00 AM–10:00 AM in New York · 5:00 PM–6:00 PM in Tehran (1h window)

⚠ New York observes daylight saving time — offset may vary by up to 1 hour seasonally

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
UTC →
🇺🇸 New York UTC-5	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p
🇮🇷 Tehran UTC+3:30	3a	4a	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a
🇮🇳 India (IST) UTC+5:30	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a

Both working Working Off hours Sleeping Now

Key Facts: New York (EST) vs Tehran (GMT+3:30)

Time Gap

8h 30m

Tehran ahead

May vary ±1h (DST)

DST Status

⏰ New York

Observes DST

✅ Tehran: No DST

Cities in EST

498

Largest: New York

18,832,416 pop.

Overlap Window

1h window

9:00 AM – 10:00 AM (EST)

5:00 PM – 6:00 PM (GMT+3:30)

Find Cities in New York & Tehran Timezones

The EST and GMT+3:30 timezones are separated by 8 hours 30 minutes. New York is the largest city in the America/New_York zone and Tehran is the largest in Asia/Tehran. New York observes daylight saving time — the difference may change by 1 hour seasonally. For scheduling between these regions, the key fact is: there are only 1 hour of mutual business-hours overlap.

Best Times to Schedule Calls: New York (EST) ↔ Tehran (GMT+3:30)

New York (EST)	Tehran (GMT+3:30)	Quality
12:00 AM	8:00 AM	❌
1:00 AM	9:00 AM	❌
2:00 AM	10:00 AM	❌
3:00 AM	11:00 AM	❌
4:00 AM	12:00 PM	❌
5:00 AM	1:00 PM	❌
6:00 AM	2:00 PM	❌
7:00 AM	3:00 PM	⚠️
8:00 AM	4:00 PM	⚠️
9:00 AM	5:00 PM	✅
10:00 AM	6:00 PM	⚠️
11:00 AM	7:00 PM	⚠️
12:00 PM	8:00 PM	❌
1:00 PM	9:00 PM	❌
2:00 PM	10:00 PM	❌
3:00 PM	11:00 PM	❌
4:00 PM	12:00 AM +1 day	❌
5:00 PM	1:00 AM +1 day	❌
6:00 PM	2:00 AM +1 day	❌
7:00 PM	3:00 AM +1 day	❌
8:00 PM	4:00 AM +1 day	❌
9:00 PM	5:00 AM +1 day	❌
10:00 PM	6:00 AM +1 day	❌
11:00 PM	7:00 AM +1 day	❌

Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.

EST to GMT+3:30: Complete 24-Hour Time Conversion Table

New York (EST)	Tehran (GMT+3:30)	IST (UTC+5:30)
12:00 AM	8:30 AM	10:30 AM
1:00 AM	9:30 AM	11:30 AM
2:00 AM	10:30 AM	12:30 PM
3:00 AM	11:30 AM	1:30 PM
4:00 AM	12:30 PM	2:30 PM
5:00 AM	1:30 PM	3:30 PM
6:00 AM	2:30 PM	4:30 PM
7:00 AM	3:30 PM	5:30 PM
8:00 AM	4:30 PM	6:30 PM
9:00 AM	5:30 PM	7:30 PM
10:00 AM	6:30 PM	8:30 PM
11:00 AM	7:30 PM	9:30 PM
12:00 PM	8:30 PM	10:30 PM
1:00 PM	9:30 PM	11:30 PM
2:00 PM	10:30 PM	12:30 AM
3:00 PM	11:30 PM	1:30 AM
← Date changes in Tehran →
4:00 PM	12:30 AM +1	2:30 AM
5:00 PM	1:30 AM +1	3:30 AM
6:00 PM	2:30 AM +1	4:30 AM
7:00 PM	3:30 AM +1	5:30 AM
8:00 PM	4:30 AM +1	6:30 AM
9:00 PM	5:30 AM +1	7:30 AM
10:00 PM	6:30 AM +1	8:30 AM
11:00 PM	7:30 AM +1	9:30 AM

IST (India Standard Time, UTC+5:30) shown as reference for Indian users. +1/−1 indicates a different calendar day.

498 Cities in New York (EST) & 163 Cities in Tehran (GMT+3:30) — Page 1 of 3

New York & 497 more — New York (EST, UTC-5)

Pittsburgh, US Cincinnati, US Manhattan, US Cleveland, US Columbus, US Bronx, US Charlotte, US Virginia Beach, US Jacksonville, US Providence, US Raleigh, US Richmond, US Ottawa, CA Port-au-Prince, HT Hartford, US Louisville, US Buffalo, US Bridgeport, US Hempstead, US Quebec City, CA Hamilton, CA Charleston, US Mississauga, CA Rochester, US Dayton, US Brampton, CA Cape Coral, US Allentown, US Knoxville, US Grand Rapids, US Columbia, US Albany, US New Haven, US Palm Bay, US Akron, US Kitchener, CA Carrefour, HT Harrisburg, US Staten Island, US Toledo, US Brookhaven, US Worcester, US Port St. Lucie, US Bonita Springs, US Kissimmee, US Augusta, US Springfield, US Laval, CA Winston-Salem, US London, CA Durham, US Chattanooga, US Greenville, US Lancaster, US Syracuse, US Scranton, US Trenton, US Petion-Ville, HT Gonaives, HT Greensboro, US Fort Wayne, US Islip, US Markham, CA Oshawa, CA Fayetteville, US Myrtle Beach, US Vaughan, CA Lexington, US Lansing, US Savannah, US Youngstown, US Ann Arbor, US Poughkeepsie, US Newark, US Windsor, CA Oyster Bay, US Concord, US Winter Haven, US Asheville, US Canton, US Flint, US Gatineau, CA Lakeland, US Jersey City, US Croix-des-Bouquets, HT Delmas, HT Reading, US South Bend, US Wilmington, US Nassau, BS Tallahassee, US St. Petersburg, US Longueuil, CA Chesapeake, US Nashua, US York, US Rock Hill, US St. Catharines, CA North Hempstead, US Arlington, US Norfolk, US Deltona, US Hialeah, US Gainesville, US Babylon, US Roanoke, US Oakville, CA Portland, US Spartanburg, US Yonkers, US Hagerstown, US Kalamazoo, US Lorain, US Huntington, US Richmond Hill, CA Hickory, US Waterbury, US Ocala, US Frederick, US Gastonia, US Spring Hill, US Burlington, CA Newport News, US Erie, US Fort Lauderdale, US Mauldin, US Cary, US Danbury, US Sherbrooke, CA High Point, US Petite Riviere de l'Artibonite, HT Pembroke Pines, US Fredericksburg, US Sudbury, CA Norwich, US Manchester, US Muskegon, US Leesburg, US Lafayette, US Saint-Marc, HT Paterson, US Alexandria, US Macon, US Cap-Haitien, HT Barrie, CA Burlington, US Warner Robins, US Hollywood, US New Bedford, US South Lyon, US Binghamton, US Ramapo, US Levis, CA Jean-Rabel, HT Athens, US Elkhart, US Saguenay, CA Guelph, CA Trois-Rivieres, CA Whitby, CA Cambridge, CA Warren, US Jacmel, HT Hampton, US Kanata, CA Lakewood, US Miramar, US Elizabeth, US Stamford, US Coral Springs, US Sterling Heights, US Milton, CA Kingston, CA Arcahaie, HT Tabarre, HT Amherst, US Johnson City, US Dover, US Dessalines, HT Lehigh Acres, US Ajax, CA Waldorf, US Lynchburg, US Waterloo, CA Port-de-Paix, HT

Tehran & 162 more — Tehran (GMT+3:30, UTC+3:30)

Hamadan, IR Yazd, IR Ardabil, IR Bandar `Abbas, IR Arak, IR Eslamshahr, IR Sanandaj, IR Qazvin, IR Zanjan, IR Gorgan, IR Shahriar, IR Shahr-e Qods, IR Kashan, IR Malard, IR Maragheh, IR Sarta, IR Dezful, IR Babol, IR Qa'em Shahr, IR Khomeyni Shahr, IR Sabzevar, IR Andimeshk, IR Amol, IR Pakdasht, IR Najafabad, IR Borujerd, IR Madan, IR Qarchak, IR Bojnurd, IR Varamin, IR Bandar-e Bushehr, IR Neyshabur, IR Saveh, IR Birjand, IR Nasim Shahr, IR Khorramabad, IR Khowy, IR Bukan, IR Shahr-e Kord, IR Semnan, IR Fardis, IR Sirjan, IR Shahin Shahr, IR Malayer, IR Mahabad, IR Saqqez, IR Shahrud, IR Khodabandeh, IR Bandar-e Mahshahr, IR Rafsanjan, IR Borazjan, IR Gonbad-e Kavus, IR Marvdasht, IR Quchan, IR Jahrom, IR Kamalshahr, IR Torbat-e Heydariyeh, IR Marivan, IR Shahreza, IR Zabol, IR Khorramshahr, IR Marand, IR Jiroft, IR Salmas, IR Bam, IR Behbahan, IR Dorud, IR Nazarabad, IR Mohammad Shahr, IR Bandar-e Anzali, IR Iranshahr, IR Fasa, IR Baneh, IR Yasuj, IR Chabahar, IR Robat Karim, IR Kashmar, IR Shushtar, IR Ahar, IR Masjed Soleyman, IR Torbat-e Jam, IR Abhar, IR Mianeh, IR Do Gonbadan, IR Kazerun, IR Behshahr, IR Alvand, IR Piranshahr, IR Eslamabad-e Gharb, IR Kuhdasht, IR Fulad Shahr, IR Khowrasgan, IR Tajrish, IR Shirvan, IR Meybod, IR Takestan, IR Langarud, IR Bumahen, IR Baharestan, IR Aligudarz, IR Bandar-e Emam Khomeyni, IR Bandar Emam, IR Qorveh, IR Shush, IR Nahavand, IR Bonab, IR Ardakan, IR Ramhormoz, IR Meshgin Shahr, IR Bandar-e Genaveh, IR Naqadeh, IR Khomeyn, IR Omidiyeh, IR Aran Bidgol, IR Baqershahr, IR Mahdasht, IR Mobarakeh, IR Meshkin Dasht, IR Neka, IR Kangan, IR Abyek, IR Saravan, IR Babolsar, IR Esfarayen, IR Damghan, IR Zarand, IR Borujen, IR Dehdasht, IR Khash, IR Taybad, IR Kut-e `Abdollah, IR Zarrin Shahr, IR Asadabad, IR Hashtgerd, IR Tonekabon, IR Khorramdarreh, IR Eqbaliyeh, IR Javanrud, IR Hashtpar, IR Sefrou, MA Sabbashahr, IR Bandar-e Torkaman, IR Chenaran, IR Bijar, IR `Aliabad-e Katul, IR Kahnuj, IR Susangerd, IR Tuyserkan, IR

⚠️ Daylight Saving Time Affects This Pair

Timezone	DST?	Standard	Daylight
America/New_York	Yes	UTC-5	UTC-4
Asia/Tehran	No	UTC+3:30	—

During DST periods the time difference between these zones may be 7 hours 30 minutes instead of 8 hours 30 minutes. Always verify the current offset if scheduling calls near clock-change dates.

Convert New York (EST) to Tehran (GMT+3:30) Time — 8 hours 30 minutes apart