中美时差12还是13小时?跨时区通话最佳时段表,中美时差通话最佳时间指南
Is the time difference between China and the United States 12 or 13 hours? The best time for cross-time zone calls table, a guide to the best time for calls due to the time difference between China and the United States
以上为机器翻译结果，长、整句建议使用 人工翻译 。