Problem converting column with date info as object to datetime

Question

I've a column with birth dates as object, the problem is when I tried to convert it into datetime, because it displays always the next warning

time data '27126' does not match format '%d/%m/%Y' (match)

         date
0        05/06/1980
1        31/07/1947
2        07/01/1963
3        26/03/1973
4        30/01/1991
5        12/12/1991
6        13/08/1987
7        10/01/1944
8        23/06/1965
9        08/10/1995

till now I've tried the next codes:

df['date'] = pd.to_datetime(df['date'], format='%d/%m/%Y')

df['date'] = df['date'].apply(lambda x: datetime.datetime.strptime(x, "%d/%m/%Y").strftime("%Y-%m-%d"))

df['date'] = pd.to_datetime(df['date'].str.strip(), format='%d/%m/%Y')

Answer 1

添加参数errors='coerce'以将不匹配的日期时间转换为缺失值，此处为NaT ：

df['date'] = pd.to_datetime(df['date'], format='%d/%m/%Y', errors='coerce')