Chicago to Viseu time converter
Viseu is 2 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 11:00 AM in Viseu.
9:18 PM in Chicago, Monday, October 19, 2026
Chicago to Viseu conversion table
Every hour of today in Chicago and the matching time in Viseu. Light rows are typical working hours (9:00–18:00).
| Chicago | Viseu |
|---|---|
| 12:00 AM | 2:00 AM |
| 1:00 AM | 3:00 AM |
| 2:00 AM | 4:00 AM |
| 3:00 AM | 5:00 AM |
| 4:00 AM | 6:00 AM |
| 5:00 AM | 7:00 AM |
| 6:00 AM | 8:00 AM |
| 7:00 AM | 9:00 AM |
| 8:00 AM | 10:00 AM |
| 9:00 AM | 11:00 AM |
| 10:00 AM | 12:00 PM |
| 11:00 AM | 1:00 PM |
| 12:00 PM | 2:00 PM |
| 1:00 PM | 3:00 PM |
| 2:00 PM | 4:00 PM |
| 3:00 PM | 5:00 PM |
| 4:00 PM | 6:00 PM |
| 5:00 PM | 7:00 PM |
| 6:00 PM | 8:00 PM |
| 7:00 PM | 9:00 PM |
| 8:00 PM | 10:00 PM |
| 9:00 PM | 11:00 PM |
| 10:00 PM | 12:00 AM+1 day |
| 11:00 PM | 1:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Viseu).
Daylight saving time and the difference
The difference changes during the year because Chicago and Viseu switch clocks on different dates:
- Oct 19, 2026 – Nov 1, 2026: +2h
- Nov 1, 2026 – Mar 14, 2027: +3h
- Mar 14, 2027 – Oct 19, 2027: +2h
Distance
Chicago and Viseu are 6,345 km (3,943 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Chicago and Viseu?
Viseu is 2 hours ahead of Chicago.
What time is it in Viseu when it is 9 AM in Chicago?
When it is 9:00 AM in Chicago, it is 11:00 AM in Viseu.
When is the best time to call Viseu from Chicago?
Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Viseu).
Does the time difference between Chicago and Viseu change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.