San José to San Antonio Time Difference
San Antonio is 1 hour ahead of San José. When it's 08:20:19 AM in San José, it's 09:20:19 AM in San Antonio.
How Many Hours Ahead Is San Antonio From San José?
San Antonio is 1 hour ahead of San José. So San José is 1 hour behind San Antonio looking the other way — the same gap, described from the other end.
In practice that means a working day in San José starts when it is already 10:00 AM in San Antonio. The gap is not fixed all year: it becomes on Sunday, November 1, 2026, when San Antonio changes its clocks.
Best Time to Call San José and San Antonio
Both cities are inside normal business hours between 9:00 AM and 4:00 PM in San José — that's 10:00 AM to 5:00 PM in San Antonio. That's a 7-hour window, so a call fits comfortably in either side's working day.
both at work San José only San Antonio only neither — hours shown along the strip are San José local time.
Convert a Specific Time
Pick any date and time in San José to see the exact equivalent in San Antonio.
Common Times Converted
San José time on the left, San Antonio time on the right.
San José to San Antonio: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in San José. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| San José | San Antonio | Working hours |
|---|---|---|
| 12:00 AM | 1:00 AM | — |
| 1:00 AM | 2:00 AM | — |
| 2:00 AM | 3:00 AM | — |
| 3:00 AM | 4:00 AM | — |
| 4:00 AM | 5:00 AM | — |
| 5:00 AM | 6:00 AM | — |
| 6:00 AM | 7:00 AM | — |
| 7:00 AM | 8:00 AM | — |
| 8:00 AM | 9:00 AM | San Antonio only |
| 9:00 AM | 10:00 AM | Both cities |
| 10:00 AM | 11:00 AM | Both cities |
| 11:00 AM | 12:00 PM | Both cities |
| 12:00 PM | 1:00 PM | Both cities |
| 1:00 PM | 2:00 PM | Both cities |
| 2:00 PM | 3:00 PM | Both cities |
| 3:00 PM | 4:00 PM | Both cities |
| 4:00 PM | 5:00 PM | San José only |
| 5:00 PM | 6:00 PM | — |
| 6:00 PM | 7:00 PM | — |
| 7:00 PM | 8:00 PM | — |
| 8:00 PM | 9:00 PM | — |
| 9:00 PM | 10:00 PM | — |
| 10:00 PM | 11:00 PM | — |
| 11:00 PM | 12:00 AM next day | — |
Understanding the San José – San Antonio Time Difference
San José runs on America/Costa_Rica, currently CST (UTC-6:00). San Antonio runs on America/Chicago, currently CDT (UTC-5:00). The gap of 1 hour is simply the distance between those two offsets.
San Antonio 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 San Antonio 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.
San José today
San Antonio today
Frequently Asked Questions
What is the time difference between San José and San Antonio?
San Antonio is currently 1 hour ahead of San José. That gap becomes on Sunday, November 1, 2026, when San Antonio changes its clocks.
How many hours ahead is San Antonio from San José?
San Antonio is 1 hour ahead of San José. Looking at it the other way, San José is 1 hour behind San Antonio.
What time is it in San Antonio when it is 9:00 AM in San José?
When it is 9:00 AM in San José, it is 10:00 AM in San Antonio.
Is San Antonio ahead of or behind San José?
San Antonio is 1 hour ahead of San José. San Antonio reaches each point in the day first, so its working day is already finishing while San José is still getting started.
What is the best time to call between San José and San Antonio?
Between 9:00 AM and 4:00 PM San José time, which is 10:00 AM to 5:00 PM in San Antonio. Both cities are inside normal business hours during that window.
Does the time difference between San José and San Antonio change during the year?
Yes. San Antonio 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 San José and San Antonio in?
San José uses the America/Costa_Rica time zone, currently CST (UTC-6:00). San Antonio uses America/Chicago, currently CDT (UTC-5:00).