The possible reason is that the database software used by Kunlun Tongtai does not support data import in time format. Time format is a very common data type, which is usually used to represent date and time. However, different database software supports the time format to different degrees. Some database software only supports time data in a specific format, while others do not support it at all.

In this case, other methods can be used to import time data. For example, convert time data into a string format and then import it into a database. Or using other database software, it may support the time format more perfectly.

In addition, we need to pay attention to the time zone of time data. Different time zones may correspond to different time offsets, which may lead to data deviation if the conversion is incorrect. Therefore, when importing time data, we need to pay attention to the conversion of time zones.