Chicago to San José Time Difference
San José is 1 hour behind Chicago. When it's 07:55:59 AM in Chicago, it's 06:55:59 AM in San José.
How Many Hours Behind Is San José From Chicago?
San José is 1 hour behind Chicago. So Chicago is 1 hour ahead of San José looking the other way — the same gap, described from the other end.
In practice that means a working day in Chicago starts when it is already 8:00 AM in San José. The gap is not fixed all year: it becomes on Sunday, November 1, 2026, when Chicago changes its clocks.
Best Time to Call Chicago and San José
Both cities are inside normal business hours between 10:00 AM and 5:00 PM in Chicago — that's 9:00 AM to 4:00 PM in San José. That's a 7-hour window, so a call fits comfortably in either side's working day.
both at work Chicago only San José only neither — hours shown along the strip are Chicago local time.
Convert a Specific Time
Pick any date and time in Chicago to see the exact equivalent in San José.
Common Times Converted
Chicago time on the left, San José time on the right.
Chicago to San José: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Chicago. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Chicago | San José | Working hours |
|---|---|---|
| 12:00 AM | 11:00 PM prev day | — |
| 1:00 AM | 12:00 AM | — |
| 2:00 AM | 1:00 AM | — |
| 3:00 AM | 2:00 AM | — |
| 4:00 AM | 3:00 AM | — |
| 5:00 AM | 4:00 AM | — |
| 6:00 AM | 5:00 AM | — |
| 7:00 AM | 6:00 AM | — |
| 8:00 AM | 7:00 AM | — |
| 9:00 AM | 8:00 AM | Chicago only |
| 10:00 AM | 9:00 AM | Both cities |
| 11:00 AM | 10:00 AM | Both cities |
| 12:00 PM | 11:00 AM | Both cities |
| 1:00 PM | 12:00 PM | Both cities |
| 2:00 PM | 1:00 PM | Both cities |
| 3:00 PM | 2:00 PM | Both cities |
| 4:00 PM | 3:00 PM | Both cities |
| 5:00 PM | 4:00 PM | San José only |
| 6:00 PM | 5:00 PM | — |
| 7:00 PM | 6:00 PM | — |
| 8:00 PM | 7:00 PM | — |
| 9:00 PM | 8:00 PM | — |
| 10:00 PM | 9:00 PM | — |
| 11:00 PM | 10:00 PM | — |
Understanding the Chicago – San José Time Difference
Chicago runs on America/Chicago, currently CDT (UTC-5:00). San José runs on America/Costa_Rica, currently CST (UTC-6:00). The gap of 1 hour is simply the distance between those two offsets.
Chicago observes Daylight Saving Time and San José does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when Chicago adjusts its clocks and the difference becomes . Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Chicago today
San José today
Frequently Asked Questions
What is the time difference between Chicago and San José?
San José is currently 1 hour behind Chicago. That gap becomes on Sunday, November 1, 2026, when Chicago changes its clocks.
How many hours behind is San José from Chicago?
San José is 1 hour behind Chicago. Looking at it the other way, Chicago is 1 hour ahead of San José.
What time is it in San José when it is 9:00 AM in Chicago?
When it is 9:00 AM in Chicago, it is 8:00 AM in San José.
Is San José ahead of or behind Chicago?
San José is 1 hour behind Chicago. Chicago reaches each point in the day first, so San José is still getting started while the Chicago working day is finishing.
What is the best time to call between Chicago and San José?
Between 10:00 AM and 5:00 PM Chicago time, which is 9:00 AM to 4:00 PM in San José. Both cities are inside normal business hours during that window.
Does the time difference between Chicago and San José change during the year?
Yes. Chicago observes Daylight Saving Time and San José does not, so the gap between them shifts during the year. It changes to on Sunday, November 1, 2026.
What time zones are Chicago and San José in?
Chicago uses the America/Chicago time zone, currently CDT (UTC-5:00). San José uses America/Costa_Rica, currently CST (UTC-6:00).