Chicago to San Mateo, CA, USA Time Converter

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

Quick answers

Selected conversion

10:30 am10:30 CST (UTC-6), Nov 1, 2026 = 8:30 am08:30 PST (UTC-8), Nov 1, 2026

Chicago is 2 hours ahead of San Mateo.

How the time difference changes

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

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

Compare Chicago time with San Mateo 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).
10:30 am10:30 in Chicago, IL, USA is 8:30 am08:30 in San Mateo, CA, USA

Chicago to San Mateo 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 Mateo

10:30 am10:30 CST (Central Standard Time) (Chicago, IL, USA). Offset UTC -6:00 hours
8:30 am08:30 PST (Pacific Standard Time) (San Mateo, CA, USA). Offset UTC -8:00 hours

10:30 am10:30 Chicago, IL, USA / 8:30 am08:30 San Mateo, CA, 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, USASan Mateo, CA, USA
10:00pm previous day PDT UTC-7
11:00pm previous day PDT UTC-7
1:00am PDT UTC-7
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22:00 previous day PDT UTC-7
23:00 previous day PDT UTC-7
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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.
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

San Mateo 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.
Clock Changes
USA daylight saving time · Clock changes worldwide

San Mateo Facts

Country
USA
State
California
Alternative Names
Matthaeopolis, San Mateo, San Matheo, San-Mateo, saenmeoteio, san matyw, san matyw kalyfrnya, sanmateo, sheng ma diao, syana myatiyo, Сан Матео, Сан-Матео, سان ماتيو, سان ماتیو، کالیفرنیا, سانماٹیو, स्यान म्याटियो, サンマテオ, 聖馬刁, 샌머테이오
Population
103,536
Currency
Dollar (USD)
Geographic Coordinates
37° 33' N Latitude / 122° 19' W Longitude
International Dialing Code
+1
More About San Mateo
San Mateo local time and city facts