Chicago to Mattoon time converter
Chicago and Mattoon are on the same time. When it is 9:00 AM in Chicago, it is 9:00 AM in Mattoon.
Finding your time zone…
11:25 PM in Chicago, Saturday, October 17, 2026
Shared working hours (9:00–18:00)
Chicago to Mattoon conversion table
Every hour of today in Chicago and the matching time in Mattoon. Light rows are typical working hours (9:00–18:00).
| Chicago | Mattoon |
|---|---|
| 12:00 AM | 12:00 AM |
| 1:00 AM | 1:00 AM |
| 2:00 AM | 2:00 AM |
| 3:00 AM | 3:00 AM |
| 4:00 AM | 4:00 AM |
| 5:00 AM | 5:00 AM |
| 6:00 AM | 6:00 AM |
| 7:00 AM | 7:00 AM |
| 8:00 AM | 8:00 AM |
| 9:00 AM | 9:00 AM |
| 10:00 AM | 10:00 AM |
| 11:00 AM | 11:00 AM |
| 12:00 PM | 12:00 PM |
| 1:00 PM | 1:00 PM |
| 2:00 PM | 2:00 PM |
| 3:00 PM | 3:00 PM |
| 4:00 PM | 4:00 PM |
| 5:00 PM | 5:00 PM |
| 6:00 PM | 6:00 PM |
| 7:00 PM | 7:00 PM |
| 8:00 PM | 8:00 PM |
| 9:00 PM | 9:00 PM |
| 10:00 PM | 10:00 PM |
| 11:00 PM | 11:00 PM |
Best time to call or meet
Both sides are at work from 9:00 AM – 6:00 PM in Chicago (9:00 AM – 6:00 PM in Mattoon).
Daylight saving time and the difference
The difference stays 0 hours all year.
Distance
Chicago and Mattoon are 270 km (168 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Chicago and Mattoon?
Chicago and Mattoon are on the same time.
What time is it in Mattoon when it is 9 AM in Chicago?
When it is 9:00 AM in Chicago, it is 9:00 AM in Mattoon.
When is the best time to call Mattoon from Chicago?
Both sides are at work from 9:00 AM – 6:00 PM in Chicago (9:00 AM – 6:00 PM in Mattoon).
Does the time difference between Chicago and Mattoon change?
No. The difference stays 0 hours all year.