A "last active time" monitor for members.
You can place [kc_last_active_time] (or [kc_lat]) shortcode anywhere, in themes, headers, footers, posts and pages.
Also you can use kc_lat_get() function in PHP code in plugins, themes etc.
In the admin area page you will find usage info too. Also there you will find fields for date format and for wrapping CSS class.