diff --git a/src/qt/bantablemodel.cpp b/src/qt/bantablemodel.cpp
index 2739b21a9d5..2676de96d7a 100644
--- a/src/qt/bantablemodel.cpp
+++ b/src/qt/bantablemodel.cpp
@@ -11,6 +11,7 @@
 
 #include <QDateTime>
 #include <QList>
+#include <QLocale>
 #include <QModelIndex>
 #include <QVariant>
 
@@ -122,7 +123,7 @@ QVariant BanTableModel::data(const QModelIndex &index, int role) const
         case Bantime:
             QDateTime date = QDateTime::fromMSecsSinceEpoch(0);
             date = date.addSecs(rec->banEntry.nBanUntil);
-            return date.toString(Qt::SystemLocaleLongDate);
+            return QLocale::system().toString(date, QLocale::LongFormat);
         }
     }
 
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 70e76f765bf..53ffb27f50b 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -43,6 +43,7 @@
 #include <QKeyEvent>
 #include <QLineEdit>
 #include <QList>
+#include <QLocale>
 #include <QMenu>
 #include <QMouseEvent>
 #include <QProgressDialog>
@@ -67,7 +68,7 @@ namespace GUIUtil {
 
 QString dateTimeStr(const QDateTime &date)
 {
-    return date.date().toString(Qt::SystemLocaleShortDate) + QString(" ") + date.toString("hh:mm");
+    return QLocale::system().toString(date.date(), QLocale::ShortFormat) + QString(" ") + date.toString("hh:mm");
 }
 
 QString dateTimeStr(qint64 nTime)