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import datetime
dt = datetime.datetime(2021, 12, 24)
t = datetime.time(12, 0)
combined = datetime.datetime.combine(dt.date(), t)
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import datetime
# Create a datetime object
dt = datetime.datetime.now()
# Set the hour of the datetime object to a specified value
dt = dt.replace(hour=9) # Replace "9" with the desired hour
print(dt)