Chicago to Oulu time converter

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

Chicago CDT

Friday, October 16, 2026

Oulu EEST

Saturday, October 17, 2026

Chicago
Illinois, United States
Fri, Oct 16
CDTUTC-5
Oulu
Finland
Sat, Oct 17
EESTUTC+3+8h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Oulu conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 10:00 AM in Chicago (5:00 PM – 6:00 PM in Oulu).

Daylight saving time and the difference

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

  • Oct 16, 2026 – Oct 24, 2026: +8h
  • Oct 24, 2026 – Nov 1, 2026: +7h
  • Nov 1, 2026 – Mar 14, 2027: +8h
  • Mar 14, 2027 – Mar 27, 2027: +7h
  • Mar 27, 2027 – Oct 16, 2027: +8h

Distance

Chicago and Oulu are 6,809 km (4,231 miles) apart in a straight line.

More conversions

Oulu to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to OuluLondon to OuluLos Angeles to OuluToronto to OuluSão Paulo to OuluParis to OuluBerlin to OuluMoscow to OuluDubai to OuluNew Delhi to OuluBangkok to OuluSingapore to Oulu

Questions and answers

What is the time difference between Chicago and Oulu?

Oulu is 8 hours ahead of Chicago.

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

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

When is the best time to call Oulu from Chicago?

Both sides are at work from 9:00 AM – 10:00 AM in Chicago (5:00 PM – 6:00 PM in Oulu).

Does the time difference between Chicago and Oulu change?

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