30 Minutes Generator

30_minutes_generator.py

import datetime
import itertools

# it generates dates in 30 minutes intervals
date_generator = (datetime.datetime.today() - datetime.timedelta(minutes=i) for i in itertools.count(0, 30))

# it gets 24h of data
dates = itertools.islice(date_generator, 24 * 2)

# convert generator data in list
dates_list = list(dates)

# converts time to 11:09 PM
hours = [hour.strftime('%I:%M %p') for hour in dates_list]

print(hours)

'''
['11:09 PM', '10:39 PM', '10:09 PM', '09:39 PM', '09:09 PM', '08:39 PM', '08:09 PM', '07:39 PM', '07:09 PM', '06:39 PM', '06:09 PM', '05:39 PM', '05:09 PM', '04:39 PM', '04:09 PM', '03:39 PM', '03:09 PM', '02:39 PM', '02:09 PM', '01:39 PM', '01:09 PM', '12:39 PM', '12:09 PM', '11:39 AM', '11:09 AM', '10:39 AM', '10:09 AM', '09:39 AM', '09:09 AM', '08:39 AM', '08:09 AM', '07:39 AM', '07:09 AM', '06:39 AM', '06:09 AM', '05:39 AM', '05:09 AM', '04:39 AM', '04:09 AM', '03:39 AM', '03:09 AM', '02:39 AM', '02:09 AM', '01:39 AM', '01:09 AM', '12:39 AM', '12:09 AM', '11:39 PM']
'''