Only run EC2 instances during work hours

IAM

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "Stmt123456789",
            "Effect": "Allow",
            "Action": [
                "ec2:StartInstances",
                "ec2:StopInstances",
                "ec2:DescribeInstances"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}

user_data.txt

#!/bin/bash

cd /home/ec2-user

{
	echo "export AWS_ACCESS_KEY=--access-key--";
	echo "export AWS_SECRET_KEY=--secret-key--";
} >> .bashrc

{
	echo "source ~/.bashrc";
	echo "tag=\$1";
	echo "shift";
	echo "for region in \$@";
	echo "do";
	echo "	instances=\$instances\$(ec2-describe-instances --region \$region --filter \"tag:SaveMoney=\$tag\" | grep -oP '^INSTANCE\t\i-\w+\t' | grep -oP 'i-\w+' | awk -vORS=\" \" '{print \$0}')";
	echo "done";
	echo "echo \$instances | sed 's/\s\$//' | tr -d '\n'";
} > get-instances.sh

{
	echo "source ~/.bashrc";
	echo "instances=\$(~/get-instances.sh \$@)";
	echo "ec2-start-instances \$instances";
} > start-instances.sh

{
	echo "source ~/.bashrc";
	echo "instances=\$(~/get-instances.sh \$@)";
	echo "ec2-stop-instances \$instances";
} > stop-instances.sh

chmod +x *.sh

{
	echo "0 11 * * 1-5 ~/start-instances.sh YesPlease us-east-1";
	echo "0 23 * * 1-5 ~/stop-instances.sh YesPlease us-east-1";
	echo "0 23 * * 1-5 ~/stop-instances.sh MorePlease us-east-1";
	echo "0 14 * * 1-5 ~/start-instances.sh YesPlease us-west-1 us-west-2";
	echo "0 2 * * 1-5 ~/stop-instances.sh YesPlease us-west-1 us-west-2";
	echo "0 2 * * 1-5 ~/stop-instances.sh MorePlease us-west-1 us-west-2";
} | crontab -u ec2-user -