import pandas as pd
df = pd.DataFrame({"dt_tm":
["2022-01-05 08:09:01",
"2022-02-09 09:10:13",
"2022-03-12 10:24:17",
"2022-04-27 11:37:28"]})
print(pd.to_datetime(df['dt_tm']).dt.date)
'''
run:
0 2022-01-05
1 2022-02-09
2 2022-03-12
3 2022-04-27
Name: dt_tm, dtype: object
'''