illinois united states time zone

Sat, 18 Apr 2026 01:54:20 +0000

Illinois Time Zone: Everything You Need to Know (2024 Update) When it comes to time zones in the United States, Illinois is a key state with a well-defined and widely recognized time zone. Whether you're living in Chicago, Springfield, or a small town in northern Illinois, understanding the Illinois time zone helps with daily planning, business operations, travel schedules, and regional coordination. This article provides a clear, comprehensive guide to the time zone for Illinois, including time changes, historical context, and practical tips. --- ### What Time Zone Does Illinois Belong To?