When it is 12:00 PM in Oulu, it is 4:00 AM in Chicago.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
Oulu is 8 hours ahead of Chicago.
🕐 Subtract 8 hours from Oulu time to get Chicago time.
Oulu uses 3 hours ahead of Universal Time (UTC+3) and Chicago uses 5 hours behind Universal Time (UTC-5).
| Oulu Time | Chicago Time | |
|---|---|---|
| 12 AM Oulu Time | ↔ | ☼ 4 PM Chicago Time |
| 1 AM Oulu Time | ↔ | ☼ 5 PM Chicago Time |
| 2 AM Oulu Time | ↔ | ☼ 6 PM Chicago Time |
| 3 AM Oulu Time | ↔ | ☼ 7 PM Chicago Time |
| 4 AM Oulu Time | ↔ | ☼ 8 PM Chicago Time |
| 5 AM Oulu Time | ↔ | 9 PM Chicago Time |
| 6 AM Oulu Time | ↔ | 10 PM Chicago Time |
| 7 AM Oulu Time | ↔ | 11 PM Chicago Time |
| 8 AM Oulu Time | ↔ | 12 AM Chicago Time |
| 9 AM Oulu Time | ↔ | 1 AM Chicago Time |
| 10 AM Oulu Time | ↔ | 2 AM Chicago Time |
| 11 AM Oulu Time | ↔ | 3 AM Chicago Time |
| Oulu Time | Chicago Time | |
|---|---|---|
| 12 PM Oulu Time | ↔ | 4 AM Chicago Time |
| 1 PM Oulu Time | ↔ | ☼ 5 AM Chicago Time |
| 2 PM Oulu Time | ↔ | ☼ 6 AM Chicago Time |
| 3 PM Oulu Time | ↔ | ☼ 7 AM Chicago Time |
| 4 PM Oulu Time | ↔ | ☼ 8 AM Chicago Time |
| 5 PM Oulu Time | ↔ | ☼ 9 AM Chicago Time |
| 6 PM Oulu Time | ↔ | ☼ 10 AM Chicago Time |
| 7 PM Oulu Time | ↔ | ☼ 11 AM Chicago Time |
| 8 PM Oulu Time | ↔ | ☼ 12 PM Chicago Time |
| 9 PM Oulu Time | ↔ | ☼ 1 PM Chicago Time |
| 10 PM Oulu Time | ↔ | ☼ 2 PM Chicago Time |
| 11 PM Oulu Time | ↔ | ☼ 3 PM Chicago Time |
Oulu is 8 hours ahead of Chicago.
Oulu is ahead of Chicago by 8 hours.
It is 1:00 AM in Chicago.