シンプルな、EC2インスタンスの自動起動・停止について

import boto3
 
def lambda_handler(event, context):
    awsRegions = boto3.client('ec2').describe_regions()['Regions']
 
    for region in awsRegions:
        awsregion = region['RegionName']
        ec2 = boto3.resource('ec2', region_name=awsregion)
 
        instances = ec2.instances.all()
 
        start_list = []
        stop_list = []
        action = event['Action']
 
        for i in instances:
            if i.tags != None:
                for t in i.tags:
                    if t['Key'] == 'Ec2StartStop':
 
                        if t['Value'] == 'Auto' or t['Value'] == action:
                            if action == 'Start' and i.state['Name'] == 'stopped':
                                    start_list.append(i.instance_id)
                            elif action == 'Stop' and i.state['Name'] == 'running':
                                    stop_list.append(i.instance_id)
 
        if start_list:
            print('Starting', len(start_list), 'instances', start_list)
            ec2.instances.filter(InstanceIds=start_list).start()
 
        elif stop_list:
            print('Stopping', len(stop_list), 'instances', stop_list)
            ec2.instances.filter(InstanceIds=stop_list).stop()

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "logs:CreateLogGroup",
        "logs:CreateLogStream",
        "logs:PutLogEvents"
      ],
      "Resource": "arn:aws:logs:*:*:*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2:Describe*",
        "ec2:Start*",
        "ec2:Stop*"
      ],
      "Resource": "*"
    }
  ]
}

30 23 ? * MON-FRI *

{"Action": "Start"}

00 13 ? * MON-FRI *

{"Action": "Stop"}