Identify unused IAM roles easily and remove them confidently by using the last used timestamp

You can view this timestamp in the IAM console or by using IAM APIs with the AWS Command Line Interface (AWS CLI) or a programmatic client . Role last used information is available in US East (Ohio, N. Virginia), US West (N. California, Oregon), Asia Pacific (Hong Kong, Mumbai, Osaka-local, Seoul, Singapore, Sydney, Tokyo), Canada (Central), EU (London, Frankfurt, Ireland, Paris, Stockholm) and South America (São Paulo) public AWS Regions. To learn more, visit the deleting roles or instance profiles documentation.  



https://aws.amazon.com/about-aws/whats-new/2019/11/identify-unused-iam-roles-easily-and-remove-them-confidently-by-using-the-last-used-timestamp/