Beijing is 15-16 hours ahead of Los Angeles. Los Angeles uses Pacific Time (PT) while Beijing 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 Beijing.
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 Beijing, catching Chinese morning business hours.
Beijing is China's capital and a major business center. Direct flights from Los Angeles take about 13 hours. The US-China trade relationship is one of the world's most significant.