- Add a simple PlayTime plugin to the server, network wide. https://www.spigotmc.org/resources/playtime.26016/
This will cause some problems if people can see *others* play, time to be honest. It would just cause teasing or just spam from people saying, "haha he has double of my play time but I'm better" or things like that. I think it is a neat idea for players to see their *own* playtimes though
Minecraft already tracks your play time by default. If Featherboard was installed and the placeholder added into the scoreboard {stat_hours_played} You will be able to see how many hours you played. You could also press escape and click statistics and look at Minutes played it will show you total time you've played. Don't worry it shortens it to days so you don't need to calculate it.