Alton to Chicago time converter
Alton and Chicago are on the same time. When it is 9:00 AM in Alton, it is 9:00 AM in Chicago.
5:51 AM in Alton, Sunday, October 18, 2026
Shared working hours (9:00–18:00)
Alton to Chicago conversion table
Every hour of today in Alton and the matching time in Chicago. Light rows are typical working hours (9:00–18:00).
| Alton | Chicago |
|---|---|
| 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 Alton (9:00 AM – 6:00 PM in Chicago).
Daylight saving time and the difference
The difference stays 0 hours all year.
Distance
Alton and Chicago are 393 km (244 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Alton and Chicago?
Alton and Chicago are on the same time.
What time is it in Chicago when it is 9 AM in Alton?
When it is 9:00 AM in Alton, it is 9:00 AM in Chicago.
When is the best time to call Chicago from Alton?
Both sides are at work from 9:00 AM – 6:00 PM in Alton (9:00 AM – 6:00 PM in Chicago).
Does the time difference between Alton and Chicago change?
No. The difference stays 0 hours all year.