Hey Admin i found that plugins witch i said (time tracker for tacking every player on time)
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Name: Time Tracker
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Info: TimeTracker is a plugin that tracks when players log in and out of your server. This plugin fetches and stores this information, and makes it easily available, through the use of two simple commands, one designed for staff, to get detailed information about anyone, the other designed with the average player in mind, providing access to that player's data.
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Link: dev.bukkit.org/bukkit-plugins/timetracker/