Documentation about token-based auth (http://devdocs.magento.com/guides/v2.0/get-started/authentication/gs-authentication-token.html) says: "By default, an admin token is valid for 4 hours, while a customer token is valid for 1 hour. You can change these values from Admin by selecting Configuration > Services > OAuth > Access Token Expiration."
I didn't find Access Token Expiration under Store menu. I see only "Clenup Setting" and "Consumer Setting" sections. I searched Magento 2.0.15 and 2.1.7 community edition.
Please suggest how to set expiration time for Token based auth.
Are you looking for this options?
I'm using Magento 2.1.7.
I don't think so. That section looks like related with OAuth. I use "token based auth", earlier Magento called it: "Mobile Auth".