The time difference between Riyadh and Chicago is 8 hours. When it is 12:00 noon in Riyadh, it is 04:00 in Chicago. Riyadh uses the Asia/Riyadh time zone (UTC+3), while Chicago uses America/Chicago (UTC-5).
With a 8 hours gap, there is no standard business-hours overlap between Riyadh and Chicago. One party will need to adjust their schedule. Early mornings in Riyadh or late evenings in Chicago tend to be the most practical compromise.
Use this table to quickly convert any hour from Riyadh time to Chicago time. Rows highlighted in green indicate overlapping business hours in both cities.
| Riyadh | Chicago | |
|---|---|---|
| 00:00 | 16:00 (-1 day) | Night |
| 01:00 | 17:00 (-1 day) | Night |
| 02:00 | 18:00 (-1 day) | Night |
| 03:00 | 19:00 (-1 day) | Night |
| 04:00 | 20:00 (-1 day) | Night |
| 05:00 | 21:00 (-1 day) | Night |
| 06:00 | 22:00 (-1 day) | |
| 07:00 | 23:00 (-1 day) | |
| 08:00 | 00:00 | |
| 09:00 | 01:00 | |
| 10:00 | 02:00 | |
| 11:00 | 03:00 | |
| 12:00 | 04:00 | |
| 13:00 | 05:00 | |
| 14:00 | 06:00 | |
| 15:00 | 07:00 | |
| 16:00 | 08:00 | |
| 17:00 | 09:00 | |
| 18:00 | 10:00 | |
| 19:00 | 11:00 | |
| 20:00 | 12:00 | |
| 21:00 | 13:00 | |
| 22:00 | 14:00 | Night |
| 23:00 | 15:00 | Night |
Chicago is currently observing daylight saving time, while Riyadh is on standard time. When Chicago switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 8 hours. Chicago is 8 hours behind Riyadh.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Subtract 8 hours from Riyadh time to get Chicago time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.