How to check the retention period of the Amazon S3 buckets?

Step1:
Log in to the AWS Management Console

Step2:
In the AWS Management Console, go to the S3 service.

Step3:
Find and click on the bucket whose retention period you want to check.

Step4:
In the bucket's settings, go to the "Management" tab.

Step5:
Under the "Lifecycle rules" section, you will see a list of lifecycle rules applied to the bucket.

Each rule will have actions that specify transition or expiration policies, which include retention periods.