[RedFusion]

This is how i'd solve it:

pawn Код:

CMD:settime(playerid, params[]) {
    new h, m;
    if( sscanf(params, "p<:>ii", h, m) ) {
        return SendClientMessage(playerid, 0xFF0000FF, "USAGE: /settime hh:mm"), 1;
    }

    if( h < 0 || h >= 24 || m < 0 || m >= 60 ) {
        return SendClientMessage(playerid, 0xFF0000FF, "ERROR: You did not enter valid time values!"), 1;
    }

    SetPlayerTime(playerid, h, m);    

    new msg[144+1];
    format(msg, sizeof msg, "You have set the time to %02i:%02i", h, m);
    SendClientMessage(playerid, 0x00FF00FF, msg);
    return 1;
}