diff --git a/src/ATBAPP/ATBDeviceControllerPlugin.cpp b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
index 236219f..77956b4 100644
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -276,6 +276,32 @@ void ATBDeviceControllerPlugin::private_getAccountData()
 
     accountData.insert("AccountingNumber", QString::number(retVR.AccountingNumber));
 
+
+    // build dateTime: -------------------------------------------------------
+    // Example: "2023-07-19T18:24:01.063+02:00"
+    QString startDateTimeString;
+    QString formatString = "yyyy-MM-ddThh:mm:ss";
+    uint year = retVR.year + 2000;
+    startDateTimeString.append(QString::number(year)).append("-");
+    uint month = retVR.month;
+    startDateTimeString.append(QString::number(month).rightJustified(2, '0')).append("-");
+    uint day = retVR.dom;
+    startDateTimeString.append(QString::number(day).rightJustified(2, '0')).append("T");
+    uint hour = retVR.hour;
+    startDateTimeString.append(QString::number(hour).rightJustified(2, '0')).append(":");
+    uint minute = retVR.min;
+    startDateTimeString.append(QString::number(minute).rightJustified(2, '0')).append(":");
+    uint seconds = retVR.sec;
+    startDateTimeString.append(QString::number(seconds).rightJustified(2, '0'));
+
+    qCritical() << "     startDateTimeString = " << startDateTimeString;
+
+    QDateTime startDateTime = QDateTime::fromString(startDateTimeString, formatString);
+    accountData.insert("accountStartTime", startDateTime);
+    //-------------------------------------------------------------------------
+
+
+
     int numberOfCoinVariants = sizeof(retVR.coinsInVault);
 
     // DEBUG