[Scottas]

because TimeUnMute is only a handler (that's what SetTimerEx returs), not a some kind of counter.

pawn Код:

new TimeUnMute[MAX_PLAYERS]
       MuteStart[MAX_PLAYERS]; 

TimeUnMute[playerid] = SetTimerEx("MuteEnd", 30000, false, "dd", playerid); 
MuteStart[playerid] = GetTickCount();

if(InMute[playerid] == 1) return SendFormatMessage(playerid, red, "You can talk more %d seconds",(GetTickCount()-MuteStart[playerid])/1000),0;