UTC zone
UTC (GMT-0)
Chicago zone
CDT (GMT-5)
Difference
5 hours behind UTC
Business overlap
3h (9-5 windows)
Working hours overlap
Each cell is one hour in UTC. Filled cells mark when 9 AM – 5 PM in UTC and Chicago both apply.
3 hours per day
- UTC
- GMT-0
- Chicago
- GMT-5
- Difference
- -5h
- Business overlap
- 3h
Hour-by-hour conversion
Each row shows the matching local time in Chicago for an hour in UTC.
| UTC | Chicago | Day | Window |
|---|---|---|---|
| 12:00 AM | 7:00 PM | previous day | — |
| 1:00 AM | 8:00 PM | previous day | — |
| 2:00 AM | 9:00 PM | previous day | — |
| 3:00 AM | 10:00 PM | previous day | — |
| 4:00 AM | 11:00 PM | previous day | — |
| 5:00 AM | 12:00 AM | same day | — |
| 6:00 AM | 1:00 AM | same day | — |
| 7:00 AM | 2:00 AM | same day | — |
| 8:00 AM | 3:00 AM | same day | — |
| 9:00 AM | 4:00 AM | same day | — |
| 10:00 AM | 5:00 AM | same day | — |
| 11:00 AM | 6:00 AM | same day | — |
| 12:00 PM | 7:00 AM | same day | — |
| 1:00 PM | 8:00 AM | same day | — |
| 2:00 PM | 9:00 AM | same day | Both 9-5 |
| 3:00 PM | 10:00 AM | same day | Both 9-5 |
| 4:00 PM | 11:00 AM | same day | Both 9-5 |
| 5:00 PM | 12:00 PM | same day | — |
| 6:00 PM | 1:00 PM | same day | — |
| 7:00 PM | 2:00 PM | same day | — |
| 8:00 PM | 3:00 PM | same day | — |
| 9:00 PM | 4:00 PM | same day | — |
| 10:00 PM | 5:00 PM | same day | — |
| 11:00 PM | 6:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 2:00 PM – 5:00 PM in UTC time. That gives you 3 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting UTC time to Chicago time
UTC follows the UTC time zone (currently UTC, GMT-0), while Chicago follows America/Chicago (currently CDT, GMT-5). Chicago is 5 hours behind UTC right now.
Chicago observes daylight saving time, while UTC does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
UTC
Does not observe daylight saving time.
Chicago
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Reverse this conversion
Chicago to UTC
Open the converter
Plan a meeting between UTC and Chicago
More conversions from UTC
Frequently asked questions
- How many hours is UTC from Chicago?
- Chicago is 5 hours behind UTC right now.
- What time is 9:00 AM UTC in Chicago?
- 9:00 AM in UTC is 4:00 AM in Chicago.
- What time is 5:00 PM UTC in Chicago?
- 5:00 PM in UTC is 12:00 PM in Chicago.
- When do UTC and Chicago business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 3 hours, roughly from 2:00 PM to 5:00 PM in UTC time.
- Does daylight saving time change the difference between UTC and Chicago?
- Chicago observes daylight saving time while UTC does not, so the offset between them changes by one hour twice a year.
Local time page
Time in UTC
Local time page
Time in Chicago