In vtimezone.cpp, valgrind issue is at line 431: dBias is not initilised. 416 short dBias; // the full bias for DST 417 bool success = true; 418 419 t.name = ""; 420 t.ident = ""; 421 t.dynYear= "CUR"; 422 t.biasDST= 0; 423 if (!GetTZInfo( aText,VTZ_STD, t.std, t.bias, aStdName, -1, aLogP )) { 424 success = false; 425 } 426 if (!GetTZInfo( aText,VTZ_DST, t.dst, dBias, aDstName, -1, aLogP )) { 427 dBias= t.bias; 428 success = false; 429 } 430 431 if (t.bias == dBias) ClrDST( t ); // no DST ? This auto dBias never be set. I don't know the reason. It seems to me that the logic here is strange. 'dBias' is set if and only if 426 is true.