World Timezones

Istanbul to Isfahan Converter

Compare Isfahan to Istanbul instead
Istanbul8:06 pmSun, Jul 19
IstanbulTRT
Turkey · UTC+3
8:06 pmSun, Jul 19
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
IsfahanIRST
Iran · UTC+3:30
8:36 pmSun, Jul 19
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p

Offset

The time difference between Istanbul and Isfahan is 0.5 hours.

0.5 hours

Istanbul (TRT) is behind Isfahan (IRST).

TRT: UTC+3

IRST: UTC+3:30

Neither Istanbul nor Isfahan is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–5 PM in Istanbul (9 AM–5 PM in Isfahan).

Both teams are in working hours during this window on weekdays.

Suggested time: 1:00 PM Istanbul (1:30 PM Isfahan).

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Turkey

  • New Year's DayThu, Jan 1
  • National Independence & Children's DayThu, Apr 23
  • Labour DayFri, May 1
  • Atatürk Commemoration & Youth DayTue, May 19
  • Democracy and National Unity DayWed, Jul 15
  • Victory DaySun, Aug 30
  • Republic DayThu, Oct 29

About these zones

Istanbul uses Turkey Time (TRT). To call Turkey, dial +90.

Isfahan uses Iran Standard Time (IRST). To call Iran, dial +98.

Isfahan is approximately 1,400 miles east of Istanbul.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

IstanbulIsfahanDay
12:00 am12:30 amSame day
1:00 am1:30 amSame day
2:00 am2:30 amSame day
3:00 am3:30 amSame day
4:00 am4:30 amSame day
5:00 am5:30 amSame day
6:00 am6:30 amSame day
7:00 am7:30 amSame day
8:00 am8:30 amSame day
9:00 am9:30 amSame day
10:00 am10:30 amSame day
11:00 am11:30 amSame day
12:00 pm12:30 pmSame day
1:00 pm1:30 pmSame day
2:00 pm2:30 pmSame day
3:00 pm3:30 pmSame day
4:00 pm4:30 pmSame day
5:00 pm5:30 pmSame day
6:00 pm6:30 pmSame day
7:00 pm7:30 pmSame day
8:00 pm8:30 pmSame day
9:00 pm9:30 pmSame day
10:00 pm10:30 pmSame day
11:00 pm11:30 pmSame day

Daylight saving time

Neither Istanbul nor Isfahan observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Istanbul
Sunrise
5:49 AM
Sunset
8:34 PM
Day length
14h 45m
Isfahan
Sunrise
5:09 AM
Sunset
7:11 PM
Day length
14h 2m

Daylight overlap: 12h 53m — 5:49 AM–6:41 PM in Istanbul (6:19 AM–7:11 PM in Isfahan). Both locations are in daylight during this window.

Cities in these zones

Other cities in Iran Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Turkey Time

  • IST
  • SAW
  • ESB
  • YEI
  • ADB
  • GZT
  • DIY
  • ADA
  • COV
  • ASR

Airports in Iran Standard Time

  • IKA
  • THR
  • MHD
  • IFN
  • PYK
  • TBZ

Related conversions

Common conversions

What is 9:00 am Istanbul in Isfahan?
9:00 am Istanbul is 9:30 am Isfahan.
What is 12:00 pm Istanbul in Isfahan?
12:00 pm Istanbul is 12:30 pm Isfahan.
What is 12:30 pm Istanbul in Isfahan?
12:30 pm Istanbul is 1:00 pm Isfahan.
What is 2:00 pm Istanbul in Isfahan?
2:00 pm Istanbul is 2:30 pm Isfahan.
What is 5:00 pm Istanbul in Isfahan?
5:00 pm Istanbul is 5:30 pm Isfahan.
What is 11:30 pm Istanbul in Isfahan?
11:30 pm Istanbul is 12:00 am Isfahan, the next day.