Time Difference: Buenos Aires vs San Francisco
Buenos Aires
1:15:34 PM ART
Friday, November 13, 2026
5h
5h
San Francisco
8:15:34 AM PST
Friday, November 13, 2026
San Francisco is 5 hours behind Buenos Aires.
Quick Reference
- Buenos Aires
- ART (GMT-3)
No Daylight Saving Time
- San Francisco
- PST (GMT-8)
PDT starts on Mar 14, 2027
Frequently Asked Questions
- What is the time difference between Buenos Aires and San Francisco?
- San Francisco is 5 hours behind Buenos Aires.
- When is the best time to call from Buenos Aires to San Francisco?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Buenos Aires uses ART and San Francisco uses PST.