Time Difference: San Francisco vs Shanghai

Shanghai is 15 hours ahead of San Francisco.

Quick Reference

San Francisco
PDT (GMT-7)

PST starts on Nov 1, 2026

Shanghai
CST (GMT+8)

No Daylight Saving Time

Frequently Asked Questions

What is the time difference between San Francisco and Shanghai?
Shanghai is 15 hours ahead of San Francisco.
When is the best time to call from San Francisco to Shanghai?
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. San Francisco uses PDT and Shanghai uses CST.
Time Difference: San Francisco vs Shanghai — 15 Hours | Timezone App