Most of the year, Johannesburg is 7 hours ahead of Chicago. During Jan 1–Mar 7, Nov 1–Dec 31, Johannesburg is 8 hours ahead of Chicago.
| Chicago | Johannesburg Most of the year | Johannesburg Jan 1–Mar 7, Nov 1–Dec 31 |
|---|---|---|
| 12 AM | 7 AM | 8 AM |
| 1 AM | 8 AM | 9 AM |
| 2 AM | 9 AM | 10 AM |
| 3 AM | 10 AM | 11 AM |
| 4 AM | 11 AM | 12 PM |
| 5 AM | 12 PM | 1 PM |
| 6 AM | 1 PM | 2 PM |
| 7 AM | 2 PM | 3 PM |
| 8 AM | 3 PM | 4 PM |
| 9 AM | 4 PM | 5 PM |
| 10 AM | 5 PM | 6 PM |
| 11 AM | 6 PM | 7 PM |
| 12 PM | 7 PM | 8 PM |
| 1 PM | 8 PM | 9 PM |
| 2 PM | 9 PM | 10 PM |
| 3 PM | 10 PM | 11 PM |
| 4 PM | 11 PM | 12 AMnext day |
| 5 PM | 12 AMnext day | 1 AMnext day |
| 6 PM | 1 AMnext day | 2 AMnext day |
| 7 PM | 2 AMnext day | 3 AMnext day |
| 8 PM | 3 AMnext day | 4 AMnext day |
| 9 PM | 4 AMnext day | 5 AMnext day |
| 10 PM | 5 AMnext day | 6 AMnext day |
| 11 PM | 6 AMnext day | 7 AMnext day |
Chicago observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour.
Johannesburg does not observe daylight saving time (DST), so its offset stays the same all year.
Most of the year, Johannesburg is 7 hours ahead of Chicago. During Jan 1–Mar 7, Nov 1–Dec 31, Johannesburg is 8 hours ahead of Chicago.
Chicago observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour. Johannesburg does not observe daylight saving time (DST), so its offset stays the same all year.
Most of the year: Both cities are in business hours at Chicago 9 AM–11 AM (Johannesburg 4 PM–6 PM). Jan 1–Mar 7, Nov 1–Dec 31: Both cities are in business hours at Chicago 9 AM–10 AM (Johannesburg 5 PM–6 PM).