San Diego to San José Time Difference
San José is 1 hour ahead of San Diego. When it's 05:58:18 AM in San Diego, it's 06:58:18 AM in San José.
How Many Hours Ahead Is San José From San Diego?
San José is 1 hour ahead of San Diego. So San Diego is 1 hour behind San José looking the other way — the same gap, described from the other end.
In practice that means a working day in San Diego starts when it is already 10:00 AM in San José. The gap is not fixed all year: it becomes 2 hours on Sunday, November 1, 2026, when San Diego changes its clocks.
Best Time to Call San Diego and San José
Both cities are inside normal business hours between 9:00 AM and 4:00 PM in San Diego — that's 10:00 AM to 5:00 PM in San José. That's a 7-hour window, so a call fits comfortably in either side's working day.
both at work San Diego only San José only neither — hours shown along the strip are San Diego local time.
Convert a Specific Time
Pick any date and time in San Diego to see the exact equivalent in San José.
Common Times Converted
San Diego time on the left, San José time on the right.
San Diego to San José: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in San Diego. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| San Diego | San José | 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 José 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 Diego 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 Diego – San José Time Difference
San Diego runs on America/Los_Angeles, currently PDT (UTC-7:00). 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.
San Diego 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 Diego adjusts its clocks and the difference becomes 2 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
San Diego today
San José today
Frequently Asked Questions
What is the time difference between San Diego and San José?
San José is currently 1 hour ahead of San Diego. That gap becomes 2 hours on Sunday, November 1, 2026, when San Diego changes its clocks.
How many hours ahead is San José from San Diego?
San José is 1 hour ahead of San Diego. Looking at it the other way, San Diego is 1 hour behind San José.
What time is it in San José when it is 9:00 AM in San Diego?
When it is 9:00 AM in San Diego, it is 10:00 AM in San José.
Is San José ahead of or behind San Diego?
San José is 1 hour ahead of San Diego. San José reaches each point in the day first, so its working day is already finishing while San Diego is still getting started.
What is the best time to call between San Diego and San José?
Between 9:00 AM and 4:00 PM San Diego time, which is 10:00 AM to 5:00 PM in San José. Both cities are inside normal business hours during that window.
Does the time difference between San Diego and San José change during the year?
Yes. San Diego observes Daylight Saving Time and San José does not, so the gap between them shifts during the year. It changes to 2 hours on Sunday, November 1, 2026.
What time zones are San Diego and San José in?
San Diego uses the America/Los_Angeles time zone, currently PDT (UTC-7:00). San José uses America/Costa_Rica, currently CST (UTC-6:00).