Take a look at ActiveTime, which manages a multitude of playertime actions. If there’s something else you’re looking for, you can always add a suggestion to the thread or create an issue on GitHub.
As for your direct question, I believe you’re referring to the Minutes Played Statistic. These are stored in a stats folder within your world and can be easily edited if need be.
As this is a rather specific and bizarre feature, might I ask what the usage of this is?