diff --git a/AI/KBlocksAITypeDefine.h b/AI/KBlocksAITypeDefine.h
--- a/AI/KBlocksAITypeDefine.h
+++ b/AI/KBlocksAITypeDefine.h
@@ -27,6 +27,4 @@
 
 #define UNIX
 
-#include <unistd.h>
-
 #endif
diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -93,6 +93,7 @@
    AI/KBlocksAIEvaluation.cpp
    AI/KBlocksAIFeature.cpp
    AI/KBlocksAILog.cpp
+   utils.cpp
 )
 
 ecm_setup_version(${KDE_APPLICATIONS_VERSION} VARIABLE_PREFIX KBLOCKS VERSION_HEADER kblocks_version.h)
diff --git a/KBlocksConfigManager.cpp b/KBlocksConfigManager.cpp
--- a/KBlocksConfigManager.cpp
+++ b/KBlocksConfigManager.cpp
@@ -12,7 +12,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <cctype>
 #include <algorithm>
diff --git a/KBlocksGameRecorder.h b/KBlocksGameRecorder.h
--- a/KBlocksGameRecorder.h
+++ b/KBlocksGameRecorder.h
@@ -41,8 +41,6 @@
     void saveBinary(FILE *pFile);
     void writeByte(FILE *pFile, int value);
 
-    timeLong getMillisecOfNow();
-
 private:
     list<_game_record_data> mGameRecord;
 };
diff --git a/KBlocksGameRecorder.cpp b/KBlocksGameRecorder.cpp
--- a/KBlocksGameRecorder.cpp
+++ b/KBlocksGameRecorder.cpp
@@ -8,8 +8,7 @@
 *   (at your option) any later version.                                   *
 ***************************************************************************/
 #include "KBlocksGameRecorder.h"
-
-#include <sys/time.h>
+#include "utils.h"
 
 KBlocksGameRecorder::KBlocksGameRecorder()
 {
@@ -27,7 +26,7 @@
     tmpLastData.index = index;
     tmpLastData.type = type;
     tmpLastData.value = value;
-    tmpLastData.time = getMillisecOfNow();
+    tmpLastData.time = Utils::getMillisecOfNow();
     mGameRecord.push_back(tmpLastData);
 }
 
@@ -84,14 +83,3 @@
     fputc(tmpByte, pFile);
 }
 
-timeLong KBlocksGameRecorder::getMillisecOfNow()
-{
-    timeval tmpCurTime;
-
-    gettimeofday(&tmpCurTime, NULL);
-
-    timeLong tmpMilliTime = (timeLong)tmpCurTime.tv_usec / 1000;
-    tmpMilliTime += (timeLong)tmpCurTime.tv_sec * 1000;
-
-    return tmpMilliTime;
-}
diff --git a/KBlocksSingleGame.h b/KBlocksSingleGame.h
--- a/KBlocksSingleGame.h
+++ b/KBlocksSingleGame.h
@@ -10,7 +10,6 @@
 #ifndef KBLOCKSSINGLEGAME_H
 #define KBLOCKSSINGLEGAME_H
 
-#include <sys/time.h>
 #include <QObject>
 
 #include "SingleGameInterface.h"
@@ -71,8 +70,6 @@
     int removeFieldLines();
     void prepareNextPiece();
 
-    timeLong getMillisecOfNow();
-
 protected:
     KBlocksField *mpField = nullptr;
 
diff --git a/KBlocksSingleGame.cpp b/KBlocksSingleGame.cpp
--- a/KBlocksSingleGame.cpp
+++ b/KBlocksSingleGame.cpp
@@ -10,7 +10,7 @@
 #include "KBlocksSingleGame.h"
 #include "KBlocksField.h"
 #include "KBlocksPiece.h"
-
+#include "utils.h"
 
 KBlocksSingleGame::KBlocksSingleGame(int gameIndex, int fieldWidth, int fieldHeight, int showPieceCount, int messagePoolSize)
 {
@@ -211,7 +211,7 @@
 
     mCurrentGameState = GameState_Running;
 
-    mGameStartTime = getMillisecOfNow();
+    mGameStartTime = Utils::getMillisecOfNow();
 
     return mCurrentGameState;
 }
@@ -233,7 +233,7 @@
     } else if ((mCurrentGameState == GameState_Pause) && (!flag)) {
         mCurrentGameState = GameState_Running;
 
-        mGameStartTime = getMillisecOfNow();
+        mGameStartTime = Utils::getMillisecOfNow();
     }
 
     return mCurrentGameState;
@@ -244,7 +244,7 @@
     if ((mCurrentGameState != GameState_Stop) && mStandbyFlag) {
         mStandbyFlag = false;
 
-        mGameStartTime = getMillisecOfNow();
+        mGameStartTime = Utils::getMillisecOfNow();
     }
 
     return mCurrentGameState;
@@ -268,7 +268,7 @@
         return GameResult_None;
     }
 
-    timeLong tmpCurTime = getMillisecOfNow();
+    timeLong tmpCurTime = Utils::getMillisecOfNow();
 
     int gameResult = GameResult_None;
 
@@ -394,14 +394,3 @@
     }
 }
 
-timeLong KBlocksSingleGame::getMillisecOfNow()
-{
-    timeval tmpCurTime;
-
-    gettimeofday(&tmpCurTime, NULL);
-
-    timeLong tmpMilliTime = (timeLong)tmpCurTime.tv_usec / 1000;
-    tmpMilliTime += (timeLong)tmpCurTime.tv_sec * 1000;
-
-    return tmpMilliTime;
-}
diff --git a/utils.h b/utils.h
new file mode 100644
--- /dev/null
+++ b/utils.h
@@ -0,0 +1,9 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+#include "KBlocksDefine.h"
+
+namespace Utils {
+	timeLong getMillisecOfNow();
+}
+#endif
diff --git a/utils.cpp b/utils.cpp
new file mode 100644
--- /dev/null
+++ b/utils.cpp
@@ -0,0 +1,11 @@
+#include "utils.h"
+
+#include <ctime>
+#include <chrono>
+
+timeLong Utils::getMillisecOfNow()
+{
+    const auto now = std::chrono::system_clock::now();
+
+    return std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count();
+}