[=WoR=Varth]

Use https://sampwiki.blast.hk/wiki/SetTimerEx

pawn Код:

new Timer[MAX_PLAYERS]

public OnPlayerConnect(playerid)
{
    Timer[playerid] = SetTimerEx("OnlineTimeUpdate",216000000,1,"%d",playerid);
    return 1;
}

public OnPlayerDisconnect(playeridmreason)
{
    KillTimer(Timer[playerid]);
    return 1;
}

forward OnlineTimeUpdate(playerid);
public OnlineTimeUpdate(playerid)
{
    SetPlayerScore(playerid,GetPlayerScore(playerid)++);
    return 1;
}