Rock Springs to Chicago time converter

Chicago is 1 hour ahead of Rock Springs. When it is 9:00 AM in Rock Springs, it is 10:00 AM in Chicago.

Rock Springs MDT

Tuesday, October 20, 2026

Chicago CDT

Tuesday, October 20, 2026

Rock Springs
Wyoming, United States
Tue, Oct 20
MDTUTC-6
Chicago
Illinois, United States
Tue, Oct 20
CDTUTC-5+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Rock Springs to Chicago conversion table

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

Rock SpringsChicago
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 Rock Springs (10:00 AM – 6:00 PM in Chicago).

Daylight saving time and the difference

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

  • Oct 20, 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 20, 2027: +1h

Distance

Rock Springs and Chicago are 1,784 km (1,109 miles) apart in a straight line.

More conversions

Chicago to Rock SpringsRock Springs to New YorkRock Springs to LondonRock Springs to Los AngelesRock Springs to TorontoRock Springs to São PauloRock Springs to ParisRock Springs to BerlinRock Springs to MoscowRock Springs to DubaiRock Springs to New DelhiRock Springs to BangkokRock Springs to Singapore
New York to ChicagoLondon to ChicagoLos Angeles to ChicagoToronto to ChicagoSão Paulo to ChicagoParis to ChicagoBerlin to ChicagoMoscow to ChicagoDubai to ChicagoNew Delhi to ChicagoBangkok to ChicagoSingapore to Chicago

Questions and answers

What is the time difference between Rock Springs and Chicago?

Chicago is 1 hour ahead of Rock Springs.

What time is it in Chicago when it is 9 AM in Rock Springs?

When it is 9:00 AM in Rock Springs, it is 10:00 AM in Chicago.

When is the best time to call Chicago from Rock Springs?

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

Does the time difference between Rock Springs and Chicago change?

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