[MadeMan]

pawn Code:

new GameHour;

forward UpdateTime();
public UpdateTime()
{
    GameHour++;
    if(GameHour >= 24)
    {
        GameHour = 0;
    }
    SetWorldTime(GameHour);
}

public OnGameModeInit()
{
    SetTimer("UpdateTime", 600000, 1);
    return 1;
}