1. time_var = strstr(txt3,"$GPZDA");
  2.         pos = strstr(txt3,"$GPGLL");
  3.         speed = strstr(txt3,"$GPVTG");
  4.  
  5.         if(time_var != 0)
  6.         {  
  7.  
  8.             time[0]=time_var[7];
  9.             time[1]=time_var[8];
  10.             time[2]=":";
  11.             time[3]=time_var[9];
  12.             time[4]=time_var[10];
  13.             time[5]=":";
  14.             time[6]=time_var[11];
  15.             time[7]=time_var[12];
  16.  
  17.             date[0]=time_var[17];
  18.             date[1]=time_var[18];
  19.             date[2]="-";
  20.             date[3]=time_var[20];
  21.             date[4]=time_var[21];
  22.             date[5]="-";
  23.             date[6]=time_var[23];
  24.             date[7]=time_var[24];
  25.             date[8]=time_var[25];
  26.             date[9]=time_var[26];
  27.  
  28.         }