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Time difference between Chicago and Istanbul
Chicago
—
Istanbul
—
Istanbul is 8 hours ahead of Chicago right now.
Does the gap change?
The gap isn't fixed. Chicago changes its clocks for daylight saving time and Istanbul doesn't, so the difference moves during the year:
- From around November 1, 2026: Istanbul ahead by 9 hours
- From around March 14, 2027: Istanbul ahead by 8 hours
Best time to meet
Normal office hours in Istanbul and Chicago don't overlap. The most workable window is 7 AM to 2 PM in Chicago, which is 3 PM to 10 PM in Istanbul, with one side starting early or finishing late.
For a recurring meeting, it's fairest to rotate which city takes the inconvenient slot.
City details
Chicago to Istanbul, hour by hour
| Chicago | Istanbul | ||
|---|---|---|---|
| 12 AM | Night | 8 AM | Early or late |
| 1 AM | Night | 9 AM | Work hours |
| 2 AM | Night | 10 AM | Work hours |
| 3 AM | Night | 11 AM | Work hours |
| 4 AM | Night | 12 PM | Work hours |
| 5 AM | Night | 1 PM | Work hours |
| 6 AM | Night | 2 PM | Work hours |
| 7 AM | Early or late | 3 PM | Work hours |
| 8 AM | Early or late | 4 PM | Work hours |
| 9 AM | Work hours | 5 PM | Early or late |
| 10 AM | Work hours | 6 PM | Early or late |
| 11 AM | Work hours | 7 PM | Early or late |
| 12 PM | Work hours | 8 PM | Early or late |
| 1 PM | Work hours | 9 PM | Early or late |
| 2 PM | Work hours | 10 PM | Night |
| 3 PM | Work hours | 11 PM | Night |
| 4 PM | Work hours | 12 AM (Mon) | Night |
| 5 PM | Early or late | 1 AM (Mon) | Night |
| 6 PM | Early or late | 2 AM (Mon) | Night |
| 7 PM | Early or late | 3 AM (Mon) | Night |
| 8 PM | Early or late | 4 AM (Mon) | Night |
| 9 PM | Early or late | 5 AM (Mon) | Night |
| 10 PM | Night | 6 AM (Mon) | Night |
| 11 PM | Night | 7 AM (Mon) | Early or late |
Based on today's clocks. Work hours are 9 AM to 5 PM.