There is no time difference between Beijing and Shenzhen. Both cities use China Standard Time (CST, UTC+8). When it's 12:00 PM in Beijing, it's also 12:00 PM in Shenzhen.
China uses a single timezone across the entire country, so all major Chinese cities are synchronized.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 6:00 PM) without any time conversion needed.
Beijing and Shenzhen represent different aspects of modern China. Beijing is the political and cultural capital, while Shenzhen is China's tech and innovation hub, home to companies like Huawei, Tencent, and BYD. High-speed trains connect them in about 8 hours, or flights take 3 hours.