new timer1;
public OnGameModeInit()
{
    print(\"Starting timer...\");
    timer1 = SetTimer(\"message\", 1000, true);
}
public message()
{
    if(some_condition) 
    {
        KillTimer(timer1);
    } 
    else 
    {
        print(\"1 second has passed\");
    }
}