如果时间条目在上午8点之前和12点之后，请将pandas中的datetime列中的时间更改为特定时间

import pandas as pd
from datetime import datetime

df = pd.DataFrame({'datetime_column': ['2022-01-01 07:30:00', '2022-01-01 08:30:00', '2022-01-01 12:30:00', '2022-01-01 13:30:00']})

df['datetime_column'] = pd.to_datetime(df['datetime_column'])

df.loc[df['datetime_column'].dt.time < datetime.strptime('08:00:00', '%H:%M:%S').time(), 'datetime_column'] = df['datetime_column'].dt.strftime('%Y-%m-%d 08:00:00')
df.loc[df['datetime_column'].dt.time > datetime.strptime('12:00:00', '%H:%M:%S').time(), 'datetime_column'] = df['datetime_column'].dt.strftime('%Y-%m-%d 12:00:00')

print(df)