Litecoin: Reduce amount that peers can adjust our time to eliminate an attack vector.

src/util.cpp

@@ -1318,7 +1318,7 @@ void AddTimeData(const CNetAddr& ip, int64 nTime)
         int64 nMedian = vTimeOffsets.median();
         std::vector<int64> vSorted = vTimeOffsets.sorted();
         // Only let other nodes change our time by so much
-        if (abs64(nMedian) < 70 * 60)
+        if (abs64(nMedian) < 35 * 60) // Litecoin: changed maximum adjust to 35 mins to avoid letting peers change our time too much in case of an attack.
         {
             nTimeOffset = nMedian;
         }