Time difference between Buenos Aires and San Francisco
Buenos Aires is 4h ahead of San Francisco. This gap is not fixed: daylight saving time moves it between +4h and +5h during the year.
Buenos Aires
Argentina
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San Francisco
United States
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When the working days overlap
A 9-to-5 day in each city overlaps for 4h. That is 13:00–17:00 in Buenos Aires, which is 09:00–13:00 in San Francisco.
Time zones compared
| City | Time zone | UTC offset |
|---|---|---|
| Buenos Aires · Argentina | America/Argentina/Buenos_Aires | UTC−3 |
| San Francisco · United States | America/Los_Angeles | UTC−7 |
Frequently asked questions
- What is the time difference between Buenos Aires and San Francisco?
- Buenos Aires is 4h ahead of San Francisco. This gap is not fixed: daylight saving time moves it between +4h and +5h during the year.
- Does the time difference between Buenos Aires and San Francisco change during the year?
- Yes. Because of daylight saving time the gap moves between +4h and +5h.
- When is the best time to call San Francisco from Buenos Aires?
- Between 13:00 and 17:00 in Buenos Aires, which is 09:00 to 13:00 in San Francisco.