def noon_datetime(dt):
"""
Returns a datetime object for noon on the day given by `dt`.
"""
return floor_datetime(dt, timedelta(days=1)) + timedelta(hours=12)
def evening_datetime(dt):
"""
Returns a datetime object for 5pm on the day specified by `dt`.
"""
return floor_datetime(dt, timedelta(days=1)) + timedelta(hours=17)