get https://{hostname}/identity-management/v3/user-profile/common/timeout-policies
This operation returns the supported session timeout policies an account user can use when updating their profile. The name for each timeout period is in minutes, and the time value is in seconds. Make sure to select a value that's equal or smaller to the Max session timeout value, set for your account in the Identity and Access Management interface's Settings tab. Administrators should run the View timeout policies operation before setting a user's timeout policy.