Beijing is 15 hours ahead of San Diego

Best overlap: 5:00 PM to 6:00 PM in San Diego is 8:00 AM to 9:00 AM in Beijing.

Shoot for 5:00 PM to 6:00 PM in San Diego; your Beijing colleagues will see that as 8:00 AM to 9:00 AM. The overlap barely stretches to 1 hour, so reserve it for what really needs a live conversation and handle the rest async. Because Beijing is on the next day, weekend boundaries can shift; check that neither side is meeting on their day off. Don't be caught out by clock changes — San Diego observes daylight saving and Beijing doesn't, so the offset varies by an hour through the year.