[Miguel]

pawn Код:

new
    Hours,
    Minutes,
    Seconds;
    
public OnGameModeInit()
{
    SetTimer("EverySecond", 1000, true);
    return 1;
}

forward EverySecond();
public EverySecond()
{
    Seconds ++;
    if(Seconds > 59)
    {
        Minutes ++;
        Seconds = 0;
    }   
    if(Minutes > 59)
    {
        Hours ++;
        Minutes = 0;
    }
    return 1;
}

As simple as that...