LogblockTime

LogblockTime (LBT) gets the online-time information from your Logblock database (http:dev.bukkit.org/server-mods/logblock/) and converts it into hours with the command:

/playtime (name)

To turn on online-time logging, go into your Logblock config, and set logPlayerInfo under logging to true.

Config:

MySQL-Information:
  Host: mysql.yourhost.com
  Database: Database
  Name: MySQLName
  Password: MySQLPassword
  Table: lb-players 
(The standard Logblock table name which contains online-time)

If you have any questions or suggestions comment them below!

NOTE: This is my first plugin! So don't expect too much ;)