Chicago to Upper Saint Clair time converter

Upper Saint Clair is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in Upper Saint Clair.

Chicago CDT

Saturday, October 17, 2026

Upper Saint Clair EDT

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Upper Saint Clair
Pennsylvania, United States
Sat, Oct 17
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Upper Saint Clair conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Chicago and Upper Saint Clair switch clocks on different dates:

  • Oct 17, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Nov 1, 2026: ±0
  • Nov 1, 2026 – Mar 14, 2027: +1h
  • Mar 14, 2027 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 17, 2027: +1h

Distance

Chicago and Upper Saint Clair are 656 km (408 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between Chicago and Upper Saint Clair?

Upper Saint Clair is 1 hour ahead of Chicago.

What time is it in Upper Saint Clair when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 10:00 AM in Upper Saint Clair.

When is the best time to call Upper Saint Clair from Chicago?

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

Does the time difference between Chicago and Upper Saint Clair change?

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