One company used the elastic go and off system, as long as the employees of a day in work full time, no fixed during the rush hours, so they choose go work in advance an hour then can go home play game, they think at that time did not had enough players to play then can easy enter the game, when you enter the game in the evening, you will hard to enter the game, so they choose off work an hour.
The tera the main play group is adult players, so this game more and more popular for white-collar.