Sao Paulo zone
GMT-3 (GMT-3)
San Francisco zone
PDT (GMT-7)
Difference
4 hours behind Sao Paulo
Business overlap
4h (9-5 windows)
Working hours overlap
Each cell is one hour in Sao Paulo. Filled cells mark when 9 AM – 5 PM in Sao Paulo and San Francisco both apply.
4 hours per day
- Sao Paulo
- GMT-3
- San Francisco
- GMT-7
- Difference
- -4h
- Business overlap
- 4h
Hour-by-hour conversion
Each row shows the matching local time in San Francisco for an hour in Sao Paulo.
| Sao Paulo | San Francisco | Day | Window |
|---|---|---|---|
| 12:00 AM | 8:00 PM | previous day | — |
| 1:00 AM | 9:00 PM | previous day | — |
| 2:00 AM | 10:00 PM | previous day | — |
| 3:00 AM | 11:00 PM | previous day | — |
| 4:00 AM | 12:00 AM | same day | — |
| 5:00 AM | 1:00 AM | same day | — |
| 6:00 AM | 2:00 AM | same day | — |
| 7:00 AM | 3:00 AM | same day | — |
| 8:00 AM | 4:00 AM | same day | — |
| 9:00 AM | 5:00 AM | same day | — |
| 10:00 AM | 6:00 AM | same day | — |
| 11:00 AM | 7:00 AM | same day | — |
| 12:00 PM | 8:00 AM | same day | — |
| 1:00 PM | 9:00 AM | same day | Both 9-5 |
| 2:00 PM | 10:00 AM | same day | Both 9-5 |
| 3:00 PM | 11:00 AM | same day | Both 9-5 |
| 4:00 PM | 12:00 PM | same day | Both 9-5 |
| 5:00 PM | 1:00 PM | same day | — |
| 6:00 PM | 2:00 PM | same day | — |
| 7:00 PM | 3:00 PM | same day | — |
| 8:00 PM | 4:00 PM | same day | — |
| 9:00 PM | 5:00 PM | same day | — |
| 10:00 PM | 6:00 PM | same day | — |
| 11:00 PM | 7:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 1:00 PM – 5:00 PM in Sao Paulo time. That gives you 4 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Sao Paulo time to San Francisco time
Sao Paulo follows the America/Sao_Paulo time zone (currently GMT-3, GMT-3), while San Francisco follows America/Los_Angeles (currently PDT, GMT-7). San Francisco is 4 hours behind Sao Paulo right now.
San Francisco observes daylight saving time, while Sao Paulo does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Sao Paulo
Does not observe daylight saving time.
San Francisco
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Reverse this conversion
San Francisco to Sao Paulo
Open the converter
Plan a meeting between Sao Paulo and San Francisco
More conversions from Sao Paulo
Frequently asked questions
- How many hours is Sao Paulo from San Francisco?
- San Francisco is 4 hours behind Sao Paulo right now.
- What time is 9:00 AM Sao Paulo in San Francisco?
- 9:00 AM in Sao Paulo is 5:00 AM in San Francisco.
- What time is 5:00 PM Sao Paulo in San Francisco?
- 5:00 PM in Sao Paulo is 1:00 PM in San Francisco.
- When do Sao Paulo and San Francisco business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 4 hours, roughly from 1:00 PM to 5:00 PM in Sao Paulo time.
- Does daylight saving time change the difference between Sao Paulo and San Francisco?
- San Francisco observes daylight saving time while Sao Paulo does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Sao Paulo
Local time page
Time in San Francisco