Convert dates and times between Colombo (Asia/Colombo) and Chicago (America/Chicago). Handles daylight-saving automatically. Chicago is currently 10.5 hours behind Colombo.
What time is it in Chicago when it's business hours in Colombo? The table converts every hour of the day from Colombo time to Chicago time. Highlighted rows are working hours (9:00–17:00) in both cities — the best window to schedule a call or meeting.
| Colombo | Chicago |
|---|---|
| 0:00 | 13:30 (−1) |
| 1:00 | 14:30 (−1) |
| 2:00 | 15:30 (−1) |
| 3:00 | 16:30 (−1) |
| 4:00 | 17:30 (−1) |
| 5:00 | 18:30 (−1) |
| 6:00 | 19:30 (−1) |
| 7:00 | 20:30 (−1) |
| 8:00 | 21:30 (−1) |
| 9:00 | 22:30 (−1) |
| 10:00 | 23:30 (−1) |
| 11:00 | 0:30 |
| 12:00 | 1:30 |
| 13:00 | 2:30 |
| 14:00 | 3:30 |
| 15:00 | 4:30 |
| 16:00 | 5:30 |
| 17:00 | 6:30 |
| 18:00 | 7:30 |
| 19:00 | 8:30 |
| 20:00 | 9:30 |
| 21:00 | 10:30 |
| 22:00 | 11:30 |
| 23:00 | 12:30 |
Highlighted: business hours (9:00–17:00) in both cities