NameError: name 'datetime' is not defined have specified import datetime

Question

Below is the code and above is the error have specified import datetime in the begging Below is the code and above is the error have specified import datetime in the begging

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Cell In [6], line 3
      1 while True:
----> 3     if (datetime.today().weekday() != 6) & (date.today().weekday() != 5):
      5         hours = [9,10,11,12,13,14,15]
      6         minutes = [0,15,30,45]

NameError: name 'datetime' is not defined

while True:
    
    if (date.today().weekday() != 6) & (date.today().weekday() != 5):

        hours = [9,10,11,12,13,14,15]
        minutes = [0,15,30,45]

        for hour in hours:
            for minute in minutes:
                schedule_time = datetime.time(hour,minute)
                if (schedule_time >= datetime.time(9,15)) & (schedule_time <= datetime.time(15,15)):
                    schedule.every().day.at(str(schedule_time)).do(job)

        while True:
            schedule.run_pending()
            sleep(300)

    else:

        now_datetime = datetime.now()
        next_datetime = datetime.combine(date(now_datetime.year,now_datetime.month,now_datetime.day + 1), time(9,15))
        sleep((next_datetime - now_datetime).seconds)

need solution for the above error