diff --git a/Jenkinsfile b/Jenkinsfile
index b1910f2..6398ef8 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,7 +10,7 @@ pipeline {
       steps {
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=648']) {
+        withEnv(['NEXT_BUILD_NUMBER=649']) {
           // env.versionNumber = VersionNumber(versionNumberString : '3.2.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '3.2.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
             env.APP_NAME = 'SteamWareLib'
diff --git a/SteamWareLib/memLayer.cs b/SteamWareLib/memLayer.cs
index 8fddbaa..0b72247 100644
--- a/SteamWareLib/memLayer.cs
+++ b/SteamWareLib/memLayer.cs
@@ -169,7 +169,7 @@ namespace SteamWare
 #if false
             redSaveHash(ACBH, valori); 
 #endif
-            lastUpdateAppConf = DateTime.Now;
+            lastUpdateAppConf = DateTime.UtcNow;
             logger.lg.scriviLog("Completato procedura startupAppConf ", tipoLog.INFO);
           }
         }
@@ -256,7 +256,7 @@ namespace SteamWare
       set
       {
         // ora salvo!
-        string redVal = value.ToString("u");
+        string redVal = value.ToString("s");
         setCacheVal("lastUpdateAppConf", redVal, true);
       }
 
@@ -309,7 +309,7 @@ namespace SteamWare
           {
             logger.lg.scriviLog(string.Format("Scaduta validita in memoria OBJ appConf --> rileggo da REDIS! (lastUpdate: {0} | maxAge: {1})", lastUpdateAppConf, maxAgeAppConf), tipoLog.EXCEPTION);
             resetAppConf();
-            lastUpdateAppConf = DateTime.Now;
+            lastUpdateAppConf = DateTime.UtcNow;
           }
           // provo a leggere da DICT
           try