那python提取出来的数据格式不一样

各位，我用的同样的代码，以前筛选的数据里时间格式都一样，也没出现问题，前两天筛选的数据里时间格式就出了问题，这是为啥？

import pandas as pd

df = pd.read_csv(r'E:\02.csv',header=None,names=["plat_number","plat_type","vehicle_colo","plat_color"
    ,"detector_id","transit_time","car_speed","lane_number","driving_direction","vehicle_state","site","capture_direction"],sep=";")
result = df.loc[df['detector_id'] == 3701055112]
result.to_csv(r'E:\04.csv',encoding='utf_8_sig')
print("已完成")

源表格式变了吖