Time difference between Rio Claro and Chicago
Chicago is 2 hours behind Rio Claro.
Local time in both cities
Chicago is 2 hours behind Rio Claro.
same day
Time zones
| Rio Claro | America/Sao_Paulo · UTC-03:00 |
|---|---|
| Chicago | America/Chicago · UTC-05:00 |
Rio Claro does not observe daylight saving and stays on UTC-03:00 all year.
Chicago is currently on daylight saving time (UTC-05:00). Next change: 2026-11-01 01:00.
Hour-by-hour conversion
Calculated for 2026-09-20 local time in Rio Claro. The two places start and end daylight saving on different dates, so another day can give a different result.
| Rio Claro (source) | Chicago (target) |
|---|---|
| 00:00 | 22:00 prev day |
| 01:00 | 23:00 prev day |
| 02:00 | 00:00 |
| 03:00 | 01:00 |
| 04:00 | 02:00 |
| 05:00 | 03:00 |
| 06:00 | 04:00 |
| 07:00 | 05:00 |
| 08:00 | 06:00 |
| 09:00 | 07:00 |
| 10:00 | 08:00 |
| 11:00 | 09:00 |
| 12:00 | 10:00 |
| 13:00 | 11:00 |
| 14:00 | 12:00 |
| 15:00 | 13:00 |
| 16:00 | 14:00 |
| 17:00 | 15:00 |
| 18:00 | 16:00 |
| 19:00 | 17:00 |
| 20:00 | 18:00 |
| 21:00 | 19:00 |
| 22:00 | 20:00 |
| 23:00 | 21:00 |
Other common differences from Rio Claro
FAQ
- How many hours apart are Rio Claro and Chicago right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Rio Claro uses America/Sao_Paulo and Chicago uses America/Chicago; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Rio Claro; the right column is the local time in Chicago at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.