Chicago to Rock Springs Time Converter

Updating current time…
Chicago
Illinois, USACDT
UTC−5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Chicago's clocks go back 1 hour on Sun, Nov 1 · CDT → CST
Rock Springs
Wyoming, USAMDT
UTC−6
1h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Clocks in Rock Springs go back 1 hour on Sun, Nov 1 · MDT → MST

Quick answers

Selected conversion

7:00 am07:00 CDT (UTC-5), Oct 27, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 27, 2026

Chicago is 1 hour ahead of Rock Springs.

How the time difference changes

Normally, Chicago is 1 hour ahead of Rock Springs. Briefly around seasonal clock changes, Chicago is 2 hours ahead of Rock Springs or Chicago and Rock Springs have the same time.

Typically, working hours of 9:00 am to 6:00 pm in Chicago correspond to 8:00 am to 5:00 pm in Rock Springs.Typically, working hours of 09:00 to 18:00 in Chicago correspond to 08:00 to 17:00 in Rock Springs.

Compare Chicago time with Rock Springs time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

CDT (Central Daylight Time) is 1 hour ahead of MDT (Mountain Daylight Time).
7:00 am07:00 in Chicago, IL, USA is 6:00 am06:00 in Rock Springs, WY, USA

Chicago to Rock Springs call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in Chicago which corresponds to 9am-5pm09:00-17:00 in Rock Springs

7:00 am07:00 CDT (Central Daylight Time) (Chicago, IL, USA). Offset UTC -5:00 hours
6:00 am06:00 MDT (Mountain Daylight Time) (Rock Springs, WY, USA). Offset UTC -6:00 hours

7:00 am07:00 Chicago, IL, USA / 6:00 am06:00 Rock Springs, WY, USA

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
Chicago, IL, USARock Springs, WY, USA
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Chicago Time Zone and Facts

Time Zone

Abbreviation / Offset
CDT – Central Daylight Time, UTC-5 (now, daylight saving time)
CST – Central Standard Time, UTC-6 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (CST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (CDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Clock Changes
USA daylight saving time · Clock changes worldwide

Chicago Facts

Country
USA
State
Illinois
Alternative Names
CHI, Cekaga, Chi-ka-ko, Chi-kâ-kô, Chicago, Chicagu, Chikago, Chykaga, Cikaga, Cikago, Cikaqo, E-Chicago, Kikako, Shikago, Sicagum, Sikago, The Windy City, Tsikago, Windy City, chikhako, cikago, cikako, shikago, shkagw, shykaghw, shykagw, shykajw, shyqgw, sikago, sikkagea, syqgw, zhi jia ge, Çikago, Çikaqo, Ĉikago, Čikaga, Čikago, Čikāga, Čėkaga, Şikago, Σικάγο, Чикаго, Чикаґо, Чыкага, Չիկագո, שיקאגא, שיקגו, شيكاجو, شيكاغو, شکاگو, شیکاگو, شیکاگۆ, ܫܝܩܓܘ, शिकागो, শিকাগো, ਸ਼ਿਕਾਗੋ, சிகாகோ, చికాగో, ಶಿಕಾಗೊ, ഷിക്കാഗോ, ชิคาโก, ရှီကာဂိုမြို့, ჩიკაგო, ሺካጎ, ᓰᖄᑯ, Ṣìkágò, シカゴ, 芝加哥, 시카고, 𐍃𐌾𐌹𐌺𐌰𐌲𐍉
Population
2,664,452
Currency
Dollar (USD)
Geographic Coordinates
41° 51' N Latitude / 87° 39' W Longitude
International Dialing Code
+1
More About Chicago
Chicago time now

Rock Springs Time Zone and Facts

Time Zone

Abbreviation / Offset
MDT – Mountain Daylight Time, UTC-6 (now, daylight saving time)
MST – Mountain Standard Time, UTC-7 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (MST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (MDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Clock Changes
USA daylight saving time · Clock changes worldwide

Rock Springs Facts

Country
USA
State
Wyoming
Alternative Names
RKS, Rok Springs, Rok-Springs, luo ke si pu lin, rak aspryngz waywmyng, rak sprngz wayywmng, rokkusupuringusu, Рок Спрингс, Рок-Спрингс, Рок-Спрінґс, راک اسپرینگز، وایومینگ, راک سپرنگز، وائیومنگ, ロックスプリングス, 罗克斯普林
Population
23,962
Currency
Dollar (USD)
Geographic Coordinates
41° 35' N Latitude / 109° 12' W Longitude
International Dialing Code
+1
More About Rock Springs
Rock Springs local time and city facts