Calculated according to the specific time. Daylight saving time: Nasdaq fund is a US stock, and the buying time in daylight saving time is between 2 1: 30 and 4: 00 a.m. Beijing time, which is counted as the day before the morning, that is, T (the same day), and after 4: 00 a.m., it is counted as T+1(the next day) buying.

2. Non-daylight saving time: from 22: 30 to 5: 00 a.m. Beijing time, it is counted as the date before the morning, that is, T (the day), and after 5: 00 a.m., it is counted as T plus 1 day (the next day) to buy.