Chicago to Surian time converter

Surian is 8 hours 30 minutes ahead of Chicago. When it is 9:00 AM in Chicago, it is 5:30 PM in Surian.

Chicago CDT

Sunday, October 18, 2026

Surian IRST

Sunday, October 18, 2026

Illinois, United States
Sun, Oct 18
CDTUTC-5
Iran
Sun, Oct 18
IRSTUTC+3:30+8h 30m
Finding your time zone…

3:40 AM in Chicago, Sunday, October 18, 2026

Shared working hours (9:00–18:00)

Chicago to Surian conversion table

Every hour of today in Chicago and the matching time in Surian. Light rows are typical working hours (9:00–18:00).

ChicagoSurian
12:00 AM8:30 AM
1:00 AM9:30 AM
2:00 AM10:30 AM
3:00 AM11:30 AM
4:00 AM12:30 PM
5:00 AM1:30 PM
6:00 AM2:30 PM
7:00 AM3:30 PM
8:00 AM4:30 PM
9:00 AM5:30 PM
10:00 AM6:30 PM
11:00 AM7:30 PM
12:00 PM8:30 PM
1:00 PM9:30 PM
2:00 PM10:30 PM
3:00 PM11:30 PM
4:00 PM12:30 AM+1 day
5:00 PM1:30 AM+1 day
6:00 PM2:30 AM+1 day
7:00 PM3:30 AM+1 day
8:00 PM4:30 AM+1 day
9:00 PM5:30 AM+1 day
10:00 PM6:30 AM+1 day
11:00 PM7:30 AM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 1:30 PM in Chicago (3:30 PM – 10:00 PM in Surian): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Chicago and Surian switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: +8h 30m
  • Nov 1, 2026 – Mar 14, 2027: +9h 30m
  • Mar 14, 2027 – Oct 18, 2027: +8h 30m

Distance

Chicago and Surian are 11,050 km (6,866 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Surian?

Surian is 8 hours 30 minutes ahead of Chicago.

What time is it in Surian when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 5:30 PM in Surian.

When is the best time to call Surian from Chicago?

Working hours don't overlap fully. The closest fit is 7:00 AM – 1:30 PM in Chicago (3:30 PM – 10:00 PM in Surian): working hours on one side, early or late on the other.

Does the time difference between Chicago and Surian change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.