Chicago to Perth time converter

Perth is 13 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 PM in Perth.

Chicago CDT

Friday, October 16, 2026

Perth AWST

Saturday, October 17, 2026

Illinois, United States
Fri, Oct 16
CDTUTC-5
Western Australia, Australia
Sat, Oct 17
AWSTUTC+8+13h
Finding your time zone…

9:01 PM in Chicago, Friday, October 16, 2026

Shared working hours (9:00–18:00)

Chicago to Perth conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Chicago (9:00 AM – 11:00 AM in Perth): 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 Perth switch clocks on different dates:

  • Oct 16, 2026 – Nov 1, 2026: +13h
  • Nov 1, 2026 – Mar 14, 2027: +14h
  • Mar 14, 2027 – Oct 16, 2027: +13h

Distance

Chicago and Perth are 17,663 km (10,975 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Perth?

Perth is 13 hours ahead of Chicago.

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

When it is 9:00 AM in Chicago, it is 10:00 PM in Perth.

When is the best time to call Perth from Chicago?

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Chicago (9:00 AM – 11:00 AM in Perth): working hours on one side, early or late on the other.

Does the time difference between Chicago and Perth change?

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