World Timezones

Tehran to Shanghai Converter

Compare Shanghai to Tehran instead
Tehran2:41 amMon, Jul 20
TehranIRST
Iran · UTC+3:30
2:41 amMon, Jul 20
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
ShanghaiCST
China · UTC+8
7:11 amMon, Jul 20
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a

Offset

The time difference between Tehran and Shanghai is 4.5 hours.

4.5 hours

Tehran (IRST) is behind Shanghai (CST).

IRST: UTC+3:30

CST: UTC+8

Neither Tehran nor Shanghai is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–1 PM in Tehran (1 PM–5 PM in Shanghai).

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

Suggested time: 11:00 AM Tehran (3:30 PM Shanghai).

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.

China

  • New Year's DayThu, Jan 1
  • Chinese New Year (Spring Festival)Tue, Feb 17
  • Labour DayFri, May 1
  • Dragon Boat FestivalFri, Jun 19
  • Mid-Autumn FestivalFri, Sep 25
  • National DayThu, Oct 1

About these zones

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

Shanghai uses China Standard Time (CST). To call China, dial +86.

Shanghai is approximately 3,950 miles east of Tehran.

Quick reference

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

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

Daylight saving time

Neither Tehran nor Shanghai 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

Tehran
Sunrise
5:04 AM
Sunset
7:19 PM
Day length
14h 15m
Shanghai
Sunrise
5:04 AM
Sunset
6:58 PM
Day length
13h 55m

Daylight overlap: 9h 25m — 5:04 AM–2:28 PM in Tehran (9:34 AM–6:58 PM in Shanghai). 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 Iran Standard Time

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

Airports in China Standard Time

  • PVG
  • SHA
  • PEK
  • PKX
  • SZX
  • CAN
  • FUO
  • CTU
  • TFU
  • TSN

Related conversions

Common conversions

What is 9:00 am Tehran in Shanghai?
9:00 am Tehran is 1:30 pm Shanghai.
What is 12:00 pm Tehran in Shanghai?
12:00 pm Tehran is 4:30 pm Shanghai.
What is 12:30 pm Tehran in Shanghai?
12:30 pm Tehran is 5:00 pm Shanghai.
What is 2:00 pm Tehran in Shanghai?
2:00 pm Tehran is 6:30 pm Shanghai.
What is 5:00 pm Tehran in Shanghai?
5:00 pm Tehran is 9:30 pm Shanghai.
What is 11:30 pm Tehran in Shanghai?
11:30 pm Tehran is 4:00 am Shanghai, the next day.