[Jefff]

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pawn Код:

new CurDay;

OnGameModeInit

pawn Код:

new Year, Month;
getdate(Year, Month, CurDay);

and

pawn Код:

bool:IsCmdLocked()
{
    new Year, Month, Day;
    getdate(Year, Month, Day);
    if(Day == CurDay) return true;
    CurDay = Day;
    return false;
}

pawn Код:

if(IsCmdLocked()) return SendClientMessage(playerid,-1,"Command is blocked");