Time Difference: Osaka vs San Francisco
Osaka
11:43:47 PM JST
Friday, November 13, 2026
17h
17h
San Francisco
6:43:47 AM PST
Friday, November 13, 2026
San Francisco is 17 hours behind Osaka.
Quick Reference
- Osaka
- JST (GMT+9)
No Daylight Saving Time
- San Francisco
- PST (GMT-8)
PDT starts on Mar 14, 2027
Frequently Asked Questions
- What is the time difference between Osaka and San Francisco?
- San Francisco is 17 hours behind Osaka.
- When is the best time to call from Osaka 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. Osaka uses JST and San Francisco uses PST.