1910年,胡适以留学生的身份首次赴美。由于中西历法的差异和中美地理上的时差等因素的影响,对于他离沪和抵美的具体时间,不但学术界所持观点有别,就是胡适本人的记录也前后不一致。本文依据史料,对这一问题进行了分析和考证。 In 1910, Hu Shi first came to the United States as an international student. Due to the differences between the Chinese and Western calendars and the geography of time difference between China and the United States, the specific time of his departure from Shanghai and the arrival of the United States is not only different from those in academia but also inconsistent with his own records. Based on historical data, this article analyzes and verifies this issue.