Updating current time…
Illinois, USACST
UTC−6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
California, USAPST
UTC−8
2h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

6:00 am06:00 CST (UTC-6), Nov 14, 2026 = 4:00 am04:00 PST (UTC-8), Nov 14, 2026

Chicago is 2 hours ahead of San Ramon.

How the time difference changes

Normally, Chicago is 2 hours ahead of San Ramon. Briefly around seasonal clock changes, Chicago is 3 hours ahead of San Ramon or Chicago is 1 hour ahead of San Ramon.

Typically, working hours of 9:00 am to 6:00 pm in Chicago correspond to 7:00 am to 4:00 pm in San Ramon.Typically, working hours of 09:00 to 18:00 in Chicago correspond to 07:00 to 16:00 in San Ramon.

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

Time Difference

CST (Central Standard Time) is 2 hours ahead of PST (Pacific Standard Time).
6:00 am06:00 in Chicago, IL, USA is 4:00 am04:00 in San Ramon, CA, USA

Chicago to San Ramon call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in Chicago which corresponds to 9am-4pm09:00-16:00 in San Ramon.

6:00 am06:00 CST (Central Standard Time) (Chicago, IL, USA). Offset UTC -6:00 hours
4:00 am04:00 PST (Pacific Standard Time) (San Ramon, CA, USA). Offset UTC -8:00 hours

6:00 am06:00 Chicago, IL, USA / 4:00 am04:00 San Ramon, CA, USA

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Hourly time comparison
Chicago, IL, USASan Ramon, CA, USA
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Chicago Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – Central Standard Time, UTC-6 (now)
CDT – Central Daylight Time, UTC-5 (daylight saving 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.
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 2:00 amSunday, November 7, 2027 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.

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

San Ramon Time Zone and Facts

Time Zone

Abbreviation / Offset
PST – Pacific Standard Time, UTC-8 (now)
PDT – Pacific Daylight Time, UTC-7 (daylight saving 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 (PDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 2:00 amSunday, November 7, 2027 at 02:00: clocks go back 1 hour to 1:00 am01:00 (PST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.

San Ramon Facts

Country
USA
State
California
Alternative Names
Limerick, Lynchville, San Ramon, San Ramón, San-Ramon, san ramwn, san ramwn kalyfrnya, sheng la meng, syana ramona, Сан Рамон, Сан-Рамон, سان رامون, سان رامون، کالیفرنیا, स्यान रामोन, 圣拉蒙, 聖拉蒙
Population
76,134
Currency
Dollar (USD)
Geographic Coordinates
37° 46' N Latitude / 121° 58' W Longitude
International Dialing Code
+1