Boston to San José Time Difference
San José is 2 hours behind Boston. When it's 08:58:10 AM in Boston, it's 06:58:10 AM in San José.
How Many Hours Behind Is San José From Boston?
San José is 2 hours behind Boston. So Boston is 2 hours ahead of San José looking the other way — the same gap, described from the other end.
In practice that means a working day in Boston starts when it is already 7:00 AM in San José. The gap is not fixed all year: it becomes 1 hour on Sunday, November 1, 2026, when Boston changes its clocks.
Best Time to Call Boston and San José
Both cities are inside normal business hours between 11:00 AM and 5:00 PM in Boston — that's 9:00 AM to 3:00 PM in San José. That's a 6-hour window, so a call fits comfortably in either side's working day.
both at work Boston only San José only neither — hours shown along the strip are Boston local time.
Convert a Specific Time
Pick any date and time in Boston to see the exact equivalent in San José.
Common Times Converted
Boston time on the left, San José time on the right.
Boston to San José: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Boston. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Boston | San José | Working hours |
|---|---|---|
| 12:00 AM | 10:00 PM prev day | — |
| 1:00 AM | 11:00 PM prev day | — |
| 2:00 AM | 12:00 AM | — |
| 3:00 AM | 1:00 AM | — |
| 4:00 AM | 2:00 AM | — |
| 5:00 AM | 3:00 AM | — |
| 6:00 AM | 4:00 AM | — |
| 7:00 AM | 5:00 AM | — |
| 8:00 AM | 6:00 AM | — |
| 9:00 AM | 7:00 AM | Boston only |
| 10:00 AM | 8:00 AM | Boston only |
| 11:00 AM | 9:00 AM | Both cities |
| 12:00 PM | 10:00 AM | Both cities |
| 1:00 PM | 11:00 AM | Both cities |
| 2:00 PM | 12:00 PM | Both cities |
| 3:00 PM | 1:00 PM | Both cities |
| 4:00 PM | 2:00 PM | Both cities |
| 5:00 PM | 3:00 PM | San José only |
| 6:00 PM | 4:00 PM | San José only |
| 7:00 PM | 5:00 PM | — |
| 8:00 PM | 6:00 PM | — |
| 9:00 PM | 7:00 PM | — |
| 10:00 PM | 8:00 PM | — |
| 11:00 PM | 9:00 PM | — |
Understanding the Boston – San José Time Difference
Boston runs on America/New_York, currently EDT (UTC-4:00). San José runs on America/Costa_Rica, currently CST (UTC-6:00). The gap of 2 hours is simply the distance between those two offsets.
Boston 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 Boston adjusts its clocks and the difference becomes 1 hour. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Boston today
San José today
Frequently Asked Questions
What is the time difference between Boston and San José?
San José is currently 2 hours behind Boston. That gap becomes 1 hour on Sunday, November 1, 2026, when Boston changes its clocks.
How many hours behind is San José from Boston?
San José is 2 hours behind Boston. Looking at it the other way, Boston is 2 hours ahead of San José.
What time is it in San José when it is 9:00 AM in Boston?
When it is 9:00 AM in Boston, it is 7:00 AM in San José.
Is San José ahead of or behind Boston?
San José is 2 hours behind Boston. Boston reaches each point in the day first, so San José is still getting started while the Boston working day is finishing.
What is the best time to call between Boston and San José?
Between 11:00 AM and 5:00 PM Boston time, which is 9:00 AM to 3:00 PM in San José. Both cities are inside normal business hours during that window.
Does the time difference between Boston and San José change during the year?
Yes. Boston observes Daylight Saving Time and San José does not, so the gap between them shifts during the year. It changes to 1 hour on Sunday, November 1, 2026.
What time zones are Boston and San José in?
Boston uses the America/New_York time zone, currently EDT (UTC-4:00). San José uses America/Costa_Rica, currently CST (UTC-6:00).