diff --git a/src/blackmisc/settingutilities.cpp b/src/blackmisc/settingutilities.cpp
index d05956e95..b41e7e437 100644
--- a/src/blackmisc/settingutilities.cpp
+++ b/src/blackmisc/settingutilities.cpp
@@ -21,14 +21,39 @@ namespace BlackMisc
             return rp;
         }
 
+        /*
+         * Wrong cmd message
+         */
+        BlackMisc::CStatusMessage CSettingUtilities::wrongCommandMessage(const QString &command)
+        {
+            QString msg = "wrong command";
+            if (!command.isEmpty())
+            {
+                msg.append(": ").append(command);
+            }
+            BlackMisc::CStatusMessage rc(BlackMisc::CStatusMessage::TypeValidation,
+                                         BlackMisc::CStatusMessage::SeverityError, msg);
+            return rc;
+        }
+
         /*
          * Wrong path name messages
          */
         CStatusMessageList CSettingUtilities::wrongPathMessages(const QString &path)
         {
-            BlackMisc::CStatusMessageList rps;
-            rps.push_back(CSettingUtilities::wrongPathMessage(path));
-            return rps;
+            BlackMisc::CStatusMessageList wrongPath;
+            wrongPath.push_back(CSettingUtilities::wrongPathMessage(path));
+            return wrongPath;
+        }
+
+        /*
+         * Wrong command message
+         */
+        CStatusMessageList CSettingUtilities::wrongCommandMessages(const QString &command)
+        {
+            BlackMisc::CStatusMessageList wrongCmds;
+            wrongCmds.push_back(CSettingUtilities::wrongCommandMessage(command));
+            return wrongCmds;
         }
 
         /*
diff --git a/src/blackmisc/settingutilities.h b/src/blackmisc/settingutilities.h
index 2b8b8c1a0..1ae1725fd 100644
--- a/src/blackmisc/settingutilities.h
+++ b/src/blackmisc/settingutilities.h
@@ -63,6 +63,12 @@ namespace BlackMisc
             //! Wrong path messages
             static BlackMisc::CStatusMessageList wrongPathMessages(const QString &path = "");
 
+            //! Wrong command message
+            static BlackMisc::CStatusMessage wrongCommandMessage(const QString &command);
+
+            //! Wrong command messages
+            static BlackMisc::CStatusMessageList wrongCommandMessages(const QString &command);
+
             //! Value not changed message
             static BlackMisc::CStatusMessage valueNotChangedMessage(const QString &valueName);
 
diff --git a/src/blacksim/setsimulator.cpp b/src/blacksim/setsimulator.cpp
index 2c2802f5f..5f1e55546 100644
--- a/src/blacksim/setsimulator.cpp
+++ b/src/blacksim/setsimulator.cpp
@@ -2,6 +2,7 @@
 
 using namespace BlackMisc;
 using namespace BlackMisc::Settings;
+using namespace BlackMisc::PhysicalQuantities;
 
 namespace BlackSim
 {
@@ -98,7 +99,7 @@ namespace BlackSim
          */
         QJsonObject CSettingsSimulator::toJson() const
         {
-            return BlackMisc::serializeJson(CSettingsSimulator::jsonMembers(), TupleConverter<CSettingsSimulator>::toTuple(*this));
+            return BlackMisc::serializeJson(TupleConverter<CSettingsSimulator>::toMetaTuple(*this));
         }
 
         /*
@@ -106,7 +107,7 @@ namespace BlackSim
          */
         void CSettingsSimulator::fromJson(const QJsonObject &json)
         {
-            BlackMisc::deserializeJson(json, CSettingsSimulator::jsonMembers(), TupleConverter<CSettingsSimulator>::toTuple(*this));
+            BlackMisc::deserializeJson(json, TupleConverter<CSettingsSimulator>::toMetaTuple(*this));
         }
 
         /*
@@ -123,6 +124,8 @@ namespace BlackSim
         void CSettingsSimulator::initDefaultValues()
         {
             this->m_selectedPlugin = CSimulatorInfo::FSX();
+            this->m_timeSyncOffset = CTime(0, CTimeUnit::hrmin());
+            this->m_timeSync = false;
         }
 
         /*
@@ -146,18 +149,42 @@ namespace BlackSim
             {
                 if (command == CSettingUtilities::CmdAdd() || command == CSettingUtilities::CmdUpdate())
                 {
-                    if (command == CSettingUtilities::CmdUpdate())
-                    {
-                        CSimulatorInfo v = value.value<CSimulatorInfo>();
-                        changedFlag = (v != this->m_selectedPlugin);
-                        msgs.push_back(CSettingUtilities::valueChangedMessage(changedFlag, "selected driver"));
-                        this->m_selectedPlugin = v;
-                        return msgs;
-                    }
+                    CSimulatorInfo v = value.value<CSimulatorInfo>();
+                    changedFlag = (v != this->m_selectedPlugin);
+                    msgs.push_back(CSettingUtilities::valueChangedMessage(changedFlag, "selected driver"));
+                    this->m_selectedPlugin = v;
                     return msgs;
                 }
+                return CSettingUtilities::wrongCommandMessages(command);
+            }
+            else if (path == CSettingsSimulator::ValueSyncTime())
+            {
+                if (command == CSettingUtilities::CmdAdd() || command == CSettingUtilities::CmdUpdate())
+                {
+                    bool v = value.value<bool>();
+                    changedFlag = (v != this->m_timeSync);
+                    msgs.push_back(CSettingUtilities::valueChangedMessage(changedFlag, "time synchronization"));
+                    this->m_timeSync = v;
+                    return msgs;
+                }
+                return CSettingUtilities::wrongCommandMessages(command);
+            }
+            else if (path == CSettingsSimulator::ValueSyncTimeOffset())
+            {
+                if (command == CSettingUtilities::CmdAdd() || command == CSettingUtilities::CmdUpdate())
+                {
+                    CTime v = value.value<CTime>();
+                    changedFlag = (v != this->m_timeSyncOffset);
+                    msgs.push_back(CSettingUtilities::valueChangedMessage(changedFlag, "time synchronization offset"));
+                    this->m_timeSyncOffset = v;
+                    return msgs;
+                }
+                return CSettingUtilities::wrongCommandMessages(command);
+            }
+            else
+            {
+                return CSettingUtilities::wrongPathMessages(path);
             }
-            return CSettingUtilities::wrongPathMessages(path);
         }
     } // namespace
 } // namespace
diff --git a/src/blacksim/setsimulator.h b/src/blacksim/setsimulator.h
index 13582bb81..99aecd968 100644
--- a/src/blacksim/setsimulator.h
+++ b/src/blacksim/setsimulator.h
@@ -11,6 +11,7 @@
 #include "blackmisc/valueobject.h"
 #include "blackmisc/statusmessagelist.h"
 #include "blackmisc/settingutilities.h"
+#include "blackmisc/pqtime.h"
 #include "simulatorinfo.h"
 
 namespace BlackSim
@@ -34,15 +35,41 @@ namespace BlackSim
                 return value;
             }
 
+            //! Path
+            static const QString &ValueSyncTimeOffset()
+            {
+                static const QString value("synctimeoffset");
+                return value;
+            }
+
+            //! Path
+            static const QString &ValueSyncTime()
+            {
+                static const QString value("synctime");
+                return value;
+            }
+
             //! \copydoc CValueObject::toQVariant()
             virtual QVariant toQVariant() const override { return QVariant::fromValue(*this); }
 
             //! Selected driver
-            BlackSim::CSimulatorInfo getSelectedPlugin() const { return this->m_selectedPlugin; }
+            const BlackSim::CSimulatorInfo &getSelectedPlugin() const { return this->m_selectedPlugin; }
 
             //! Selected driver
             void setSelectedPlugin(const BlackSim::CSimulatorInfo &plugin) { this->m_selectedPlugin = plugin; }
 
+            //! Time synchronization offset time
+            const BlackMisc::PhysicalQuantities::CTime &getSyncTimeOffset() const { return this->m_timeSyncOffset;}
+
+            //! Set time synchronization offset time
+            void setSyncTimeOffset(const BlackMisc::PhysicalQuantities::CTime &offset) { this->m_timeSyncOffset = offset; this->m_timeSyncOffset.switchUnit(BlackMisc::PhysicalQuantities::CTimeUnit::hrmin());}
+
+            //! Time syncronization enabled?
+            bool isTimeSyncEnabled() const { return this->m_timeSync;}
+
+            //! Set time synchronization
+            void setTimeSyncEnabled(bool enabled) { this->m_timeSync = enabled; }
+
             //! Equal operator ==
             bool operator ==(const CSettingsSimulator &other) const;
 
@@ -92,12 +119,14 @@ namespace BlackSim
         private:
             BLACK_ENABLE_TUPLE_CONVERSION(CSettingsSimulator)
             BlackSim::CSimulatorInfo m_selectedPlugin;
+            bool m_timeSync = false;
+            BlackMisc::PhysicalQuantities::CTime m_timeSyncOffset;
         };
 
     } // namespace
 } // namespace
 
 Q_DECLARE_METATYPE(BlackSim::Settings::CSettingsSimulator)
-BLACK_DECLARE_TUPLE_CONVERSION(BlackSim::Settings::CSettingsSimulator, (o.m_selectedPlugin))
+BLACK_DECLARE_TUPLE_CONVERSION(BlackSim::Settings::CSettingsSimulator, (o.m_selectedPlugin, o.m_timeSync, o.m_timeSyncOffset))
 
 #endif // guard