Chicago and Johannesburg working-hours overlap
On Monday, 28 September 2026, Chicago is 7 hours behind Johannesburg — UTC-05:00 against UTC+02:00. Their working hours overlap for 1 hour that day, between 14:00–15:00 UTC — 09:00–10:00 in Chicago and 16:00–17:00 in Johannesburg. Chicago changes clocks on Sunday, 1 November 2026, and the gap between them goes from 7 hours to 8 hours. Johannesburg does not change clocks at all.
Every figure on this page describes Monday, 28 September 2026 — a fixed day, not the day you are reading it. Working hours are 09:00–17:00 local time for both cities; change either, or pick another date, in the overlap calculator.
Shared working hours
Everyone is at work between 14:00–15:00 UTC — 1 hour.
| City | Local time | Offset |
|---|---|---|
| Chicago | 09:00–10:00 | UTC-05:00 |
| Johannesburg | 16:00–17:00 | UTC+02:00 |
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| Chicago | 09:00–17:00 | 14:00–22:00 UTC | UTC-05:00 | UTC-05:00 → UTC-06:00, 1 Nov 2026 |
| Johannesburg | 09:00–17:00 | 07:00–15:00 UTC | UTC+02:00 | No daylight saving |
How the shared window moves through the year
Chicago changes clocks on Sunday, 1 November 2026, and Johannesburg never does, so the gap between them moves only when Chicago's clocks do. Each row is the same pair of working days, sampled once a month, so the window's size and position follow the clock changes described above.
| Month | Shared window | Length |
|---|---|---|
| 2026-10 | 14:00–15:00 UTC | 1 hour |
| 2026-11 | No shared hours | — |
| 2026-12 | No shared hours | — |
| 2027-01 | No shared hours | — |
| 2027-02 | No shared hours | — |
| 2027-03 | 14:00–15:00 UTC | 1 hour |
| 2027-04 | 14:00–15:00 UTC | 1 hour |
| 2027-05 | 14:00–15:00 UTC | 1 hour |
| 2027-06 | 14:00–15:00 UTC | 1 hour |
| 2027-07 | 14:00–15:00 UTC | 1 hour |
| 2027-08 | 14:00–15:00 UTC | 1 hour |
| 2027-09 | 14:00–15:00 UTC | 1 hour |
Questions
- What time can Chicago and Johannesburg meet?
- 14:00–15:00 UTC on Monday, 28 September 2026 — 1 hour. In Chicago that is 09:00–10:00, and in Johannesburg it is 16:00–17:00.
- How far apart are Chicago and Johannesburg?
- On Monday, 28 September 2026, Chicago is 7 hours behind Johannesburg — UTC-05:00 against UTC+02:00. Chicago changes clocks on Sunday, 1 November 2026, and the gap between them goes from 7 hours to 8 hours. Johannesburg does not change clocks at all.
- Does the overlap between Chicago and Johannesburg change through the year?
- The shared window is 14:00–15:00 UTC in the 8 of the twelve months from Monday, 28 September 2026 that have one; 4 have no shared window at all.
Related city pairs
- Honolulu and Chicago
- Honolulu and Johannesburg
- San Francisco and Chicago
- San Francisco and Johannesburg
- Denver and Chicago
- Denver and Johannesburg
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.