Which social network has announced that it is to introduce a time management tool which will be like a daily reminder?

Facebook (and Instagram) has announced that it is to introduce a time management tool which will be like a daily reminder. This tool will help people to manage their time by restricting them in spending time on the platforms. Using this tool the users can set a time limit to be spent on the app. They will be alerted when they reach the time limit. It is also introducing an option to deactivate notifications on smartphones.