You can view and manage your active login sessions, by accessing the Active Sessions log in your User Profile > Security tab.
In this section you will see all the information related to your login, such as: device, browser, IP address, date and time of the login.
If you have more than one session active at the time, you can use the "Terminate" button to logout from a specific session, or "Terminate All Others" to close them all at once, leaving only the current one active.