https://www.techradar.com/news/you-can-now-track-how-much-time-youre-wasting-on-facebook-and-instagram

Facebook and Instagram now have a suite of time-management tools to help you keep tabs on how long you spend uploading, liking and commenting every day.

Last month, eagle-eyed Facebook users discovered a reference to an option called 'Your Time on Facebook' in the social network's official Android app. The feature has now rolled out in the form of a dashboard that reveals how long you spend using the app each day, and lets you set limits and mute notifications for certain periods.