Time difference between Chicago and Colombo
11h 30m
Colombo is 11h 30m ahead of Chicago.
Does daylight saving change it?
Yes. In winter the gap is 11h 30m; in summer it is 10h 30m. Only Chicago observes daylight saving.
Overlapping work hours
During Chicago work hours (09:00–18:00) Colombo is off the clock. One side has to take an early morning or a late evening.
Chicago time → Colombo time
| 00:00 | 11:30 |
|---|---|
| 01:00 | 12:30 |
| 02:00 | 13:30 |
| 03:00 | 14:30 |
| 04:00 | 15:30 |
| 05:00 | 16:30 |
| 06:00 | 17:30 |
| 07:00 | 18:30 |
| 08:00 | 19:30 |
| 09:00 | 20:30 |
| 10:00 | 21:30 |
| 11:00 | 22:30 |
| 12:00 | 23:30 |
| 13:00 | 00:30next day |
| 14:00 | 01:30next day |
| 15:00 | 02:30next day |
| 16:00 | 03:30next day |
| 17:00 | 04:30next day |
| 18:00 | 05:30next day |
| 19:00 | 06:30next day |
| 20:00 | 07:30next day |
| 21:00 | 08:30next day |
| 22:00 | 09:30next day |
| 23:00 | 10:30next day |
Standard time (January). During daylight saving each row shifts by an hour.
Frequently asked questions
Q. How many hours is Chicago ahead of Colombo?
11h 30m on standard time. During daylight saving it becomes 10h 30m, an hour more or less.
Q. What time is it in Colombo when it is noon in Chicago?
Read the 12:00 row of the 24-hour table below. The table is on standard time, so each row shifts an hour during daylight saving.
Q. When should we schedule a meeting?
The work hours do not overlap at all. One side has to take an early morning or a late evening.