Shanghai is 15-16 hours ahead of Los Angeles. Los Angeles uses Pacific Time (PT) while Shanghai uses China Standard Time (CST, UTC+8). When it's 5:00 PM in Los Angeles, it's 9:00 AM the next day in Shanghai.
China does not observe daylight saving time, but California does. The difference is 15 hours during Pacific Daylight Time and 16 hours during Pacific Standard Time.
Best calling time: 5:00 PM - 9:00 PM Los Angeles time. This corresponds to 8:00 AM - 12:00 PM in Shanghai, catching Chinese morning business hours.
Shanghai is China's largest city and a global financial center. Direct flights from Los Angeles take about 13 hours. Los Angeles has significant Chinese-American communities and strong trade ties with China.