Chicago and São Paulo working-hours overlap
On Monday, 28 September 2026, Chicago is 2 hours behind São Paulo — UTC-05:00 against UTC-03:00. Their working hours overlap for 6 hours that day, between 14:00–20:00 UTC — 09:00–15:00 in Chicago and 11:00–17:00 in São Paulo. Chicago changes clocks on Sunday, 1 November 2026, and the gap between them goes from 2 hours to 3 hours. São Paulo 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 14:00–20:00 UTC — 6 hours.
| City | Local time | Offset |
|---|---|---|
| Chicago | 09:00–15:00 | UTC-05:00 |
| São Paulo | 11:00–17:00 | UTC-03:00 |
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 |
| São Paulo | 09:00–17:00 | 12:00–20:00 UTC | UTC-03:00 | No daylight saving |
How the shared window moves through the year
Chicago changes clocks on Sunday, 1 November 2026, and São Paulo 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 | 14:00–20:00 UTC | 6 hours |
| 2026-11 | 15:00–20:00 UTC | 5 hours |
| 2026-12 | 15:00–20:00 UTC | 5 hours |
| 2027-01 | 15:00–20:00 UTC | 5 hours |
| 2027-02 | 15:00–20:00 UTC | 5 hours |
| 2027-03 | 14:00–20:00 UTC | 6 hours |
| 2027-04 | 14:00–20:00 UTC | 6 hours |
| 2027-05 | 14:00–20:00 UTC | 6 hours |
| 2027-06 | 14:00–20:00 UTC | 6 hours |
| 2027-07 | 14:00–20:00 UTC | 6 hours |
| 2027-08 | 14:00–20:00 UTC | 6 hours |
| 2027-09 | 14:00–20:00 UTC | 6 hours |
Questions
- What time can Chicago and São Paulo meet?
- 14:00–20:00 UTC on Monday, 28 September 2026 — 6 hours. In Chicago that is 09:00–15:00, and in São Paulo it is 11:00–17:00.
- How far apart are Chicago and São Paulo?
- On Monday, 28 September 2026, Chicago is 2 hours behind São Paulo — UTC-05:00 against UTC-03:00. Chicago changes clocks on Sunday, 1 November 2026, and the gap between them goes from 2 hours to 3 hours. São Paulo does not change clocks at all.
- Does the overlap between Chicago and São Paulo change through the year?
- Chicago changes clocks on Sunday, 1 November 2026, and São Paulo never does, so the gap between them moves only when Chicago's clocks do. Sampled once a month across the twelve months from Monday, 28 September 2026 the window is 14:00–20:00 UTC, 15:00–20:00 UTC.
Related city pairs
- Honolulu and Chicago
- Honolulu and São Paulo
- San Francisco and Chicago
- San Francisco and São Paulo
- Denver and Chicago
- Denver and São Paulo
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.