By default, the validity period of a logon session by using an Alibaba Cloud account is 3 hours. You can modify the validity period based on your business requirements. However, the validity period must be greater than or equal to 1 hour and less than or equal to 24 hours. After the logon session expires, you are automatically logged off from the session.
Procedure
Log on to the Account Center console. On the Security Settings page, click Change next to Session time.
Specify the validity period of a logon session.
After the validity period of a logon session is set, you must log on again to make the specified validity period take effect.