The Audit log pane displays an audit trail of administrative actions related to this catalog and its schemas, tables, views, materialized views, and columns. Your current role must have the View audit log privilege in order to see audit log entries from all users.
The following columns are shown:
Time of change: The date and time the change was performed.
All information in the audit logs are kept in perpetuity for security and audit purposes. They do not expire and are never purged.