Updating current time…
IranIRST
UTC+3:30
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Quick answers

Selected conversion

3:30 pm15:30 IRST (UTC+3:30), Oct 12, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 12, 2026

Isfahan is 2 hours behind IST.

How the time difference changes

Isfahan is 2 hours behind IST year-round.

Working hours of 9:00 am to 5:00 pm in Isfahan correspond to 11:00 am to 7:00 pm in IST.Working hours of 09:00 to 17:00 in Isfahan correspond to 11:00 to 19:00 in IST.

Compare Isfahan time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

IRST (Iran Standard Time) is 2 hours behind India Standard Time.
3:30 pm15:30 in Isfahan, Iran is 5:30 pm17:30 in IST

Isfahan to IST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in Isfahan which corresponds to 11am-5pm11:00-17:00 in IST

3:30 pm15:30 IRST (Iran Standard Time) (Isfahan, Iran). Offset UTC +3:30 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours

3:30 pm15:30 Isfahan, Iran / 5:30 pm17:30 IST

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Hourly time comparison
Isfahan, IranIST
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Isfahan Time Zone and Facts

Time Zone

Abbreviation / Offset
IRST – Iran Standard Time, UTC+3:30 (no daylight saving time)

Isfahan Facts

Country
Iran
Alternative Names
Aspadana, Dakbayan sa Esfahan, Dakbayan sa Esfahān, Esfahan, Esfahano, Esfahān, Esfehan, Eşfahān, Eşfehān, IFN, Isfachan, Isfahan, Isfahana, Isfahanas, Isfahanum, Isfahon, Isfahán, Isfahāna, Isfakhan, Isfehan, Ispahan, Iszfahan, Iszfahán, Kota Isfahan, Spahan, Yspyhan, asfhan, aysfahan, esaphahana, esufahan, icupakan, isafahana, iseupahan, isfahana, isphahana, xis fa han, yi si fa han, Îsfehan, İsfahan, İsfehan, Ισφαχάν, Ісфахан, Исфахан, Исфаҳон, Исфаһан, Սպահան, אספהאן, أصفهان, ئسفأھان, ئەسفەھان, اصفهان, اصفہان, ایصفاهان, इस्फहान, इस्फ़हान, এসফাহন, ਇਸਫ਼ਹਾਨ, இசுபகான், อิสฟาฮาน, ისპაანი, エスファハーン, 伊斯法罕, 이스파한
Population
1,547,164
Currency
Rial (IRR)
Geographic Coordinates
32° 39' N Latitude / 51° 40' E Longitude
International Dialing Code
+98

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.

Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2