for x in random_numbers:

    #break log line into parts
    groups=re.match(regex, log_line).groups()

    #print(groups)

    #group one has the timestamp
    timestamp = groups[1]
    #print(timestamp)

    #parse date into datetime object
    dt = datetime.strptime(timestamp, '%d/%b/%Y:%H:%M:%S %z') #you need to create a precise date format string
    #print(dt)

    #add x random minutes to the date to generate fake requests
    dt = dt + timedelta(minutes=int(x))

    #print(dt)

    #convert datetime object back to string
    updated_timestamp = datetime.strftime(dt, '%d/%b/%Y:%H:%M:%S %z')

    #update url
    new_log_line=template_log_line.format(random=x, timestamp=updated_timestamp)

    log_entries.append(new_log_line)
    #print(new_log_line)