Time Zones in Illinois, United States

Time Zone Currently Being Used in Illinois

Offset	Time Zone Abbreviation & Name		Example City	Current Time
UTC -5	CDT	Central Daylight Time	Chicago	Wed, 3:11:48 am

Central Time in Illinois

Time Zone Abbreviation & Name		Offset	Current Time
CT	Central Time	UTC -6:00 / -5:00	Wed, 3:11:48 am

Note: Local time in these time zones changes when Daylight Saving Time begins and ends.

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Time Zone Not Currently Being Observed in Illinois

Offset	Time Zone Abbreviation & Name		Commences
UTC -6	CST	Central Standard Time	Nov 2, 2025

The above time zone is used during other parts of the year. It will become active again after the next clock change as Daylight Saving Time begins or ends.

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