How to change this from 1 minute to 3 minutes ?

[eJay]

Pano po palitan na ganto po ? at sakto po sa time

announce "Dice: After 3 Minute the Portal will close.",0;

Here my script.

OnMinute15:

announce "Dice: We are going to have a Dice event.",0;

sleep2 10000;

announce "Dice: For those who wants to join, Please proceed to the center of Prontera and enter the Warp Portal.",0;

sleep2 10000;

announce "Dice: After 1 Minute the Portal will close.",0;

sleep2 10000;

announce "Dice: So please go to the middle of Prontera and enter the Warp Portal now if you want to join.",0;

enablenpc "prtevent";

initnpctimer;

end;

OnTimer30000:

announce "Dice: Last 30 seconds.",0;

sleep2 5000;

announce "Dice: If you want to join please enter the Warp Portal beside me here in Prontera.",0;

end;

[Emistry]

change

OnTimer30000:

to

OnTimer150000: