Chicago observes daylight saving time. The UTC offset shifts by one hour during summer months.
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Chicago, USA
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CST · UTC-6
Chicago Time Zone: CST/CDT and UTC-6
Chicago operates on CST/CDT (UTC-6), placing it behind Coordinated Universal Time (UTC) by 6 hours. The IANA timezone identifier is America/Chicago.
Chicago observes daylight saving time. The UTC offset shifts by one hour during summer months. This means the time difference between Chicago and cities that do observe daylight saving time will shift by one hour seasonally.
For scheduling calls with Chicago, useful reference points: Chicago is 6 hours behind London on GMT and 1 hour behind New York on EST. During US daylight saving time the difference with New York shifts by one hour.
Frequently Asked Questions
What time is it in Chicago right now?
Chicago follows CST/CDT (UTC-6). The live clock at the top of this page shows the current local time in Chicago, updated every second.
What time zone is Chicago in?
Chicago is in CST/CDT (UTC-6). The IANA timezone identifier is America/Chicago.
Does Chicago observe daylight saving time?
Chicago observes daylight saving time. The UTC offset shifts by one hour during summer months.
What is the time difference between Chicago and London?
Chicago (CST, UTC-6) is 6 hours behind London (during GMT, UTC+0).
What is the time difference between Chicago and New York?
Chicago (CST, UTC-6) is 1 hour behind New York (during EDT, UTC−4).