diff --git a/src/plugins/coreplugin/coreplugin.cpp b/src/plugins/coreplugin/coreplugin.cpp
index bb63869fa8b..b2a61550777 100644
--- a/src/plugins/coreplugin/coreplugin.cpp
+++ b/src/plugins/coreplugin/coreplugin.cpp
@@ -180,9 +180,11 @@ bool CorePlugin::initialize(const QStringList &arguments, QString *errorMessage)
     expander->registerVariable("CurrentTime:RFC", tr("The current time (RFC2822)."),
                                []() { return QTime::currentTime().toString(Qt::RFC2822Date); });
     expander->registerVariable("CurrentDate:Locale", tr("The current date (Locale)."),
-                               []() { return QDate::currentDate().toString(Qt::DefaultLocaleShortDate); });
+                               []() { return QLocale::system()
+                                        .toString(QDate::currentDate(), QLocale::ShortFormat); });
     expander->registerVariable("CurrentTime:Locale", tr("The current time (Locale)."),
-                               []() { return QTime::currentTime().toString(Qt::DefaultLocaleShortDate); });
+                               []() { return QLocale::system()
+                                        .toString(QTime::currentTime(), QLocale::ShortFormat); });
     expander->registerVariable("Config:DefaultProjectDirectory", tr("The configured default directory for projects."),
                                []() { return DocumentManager::projectsDirectory().toString(); });
     expander->registerVariable("Config:LastFileDialogDirectory", tr("The directory last visited in a file dialog."),
diff --git a/src/plugins/git/gerrit/gerritmodel.cpp b/src/plugins/git/gerrit/gerritmodel.cpp
index c5e346aaa6e..a4e2ae8e1eb 100644
--- a/src/plugins/git/gerrit/gerritmodel.cpp
+++ b/src/plugins/git/gerrit/gerritmodel.cpp
@@ -466,7 +466,7 @@ QString GerritModel::toHtml(const QModelIndex& index) const
         << dependencyHtml(dependsOnHeader, c->dependsOnNumber, serverPrefix)
         << dependencyHtml(neededByHeader, c->neededByNumber, serverPrefix)
         << "<tr><td>" << statusHeader << "</td><td>" << c->status
-        << ", " << c->lastUpdated.toString(Qt::DefaultLocaleShortDate) << "</td></tr>"
+        << ", " << QLocale::system().toString(c->lastUpdated, QLocale::ShortFormat) << "</td></tr>"
         << "<tr><td>" << patchSetHeader << "</td><td>" << "</td></tr>" << c->currentPatchSet.patchSetNumber << "</td></tr>"
         << c->currentPatchSet.approvalsToHtml()
         << "<tr><td>" << urlHeader << "</td><td><a href=\"" << c->url << "\">" << c->url << "</a></td></tr>"
diff --git a/src/plugins/projectexplorer/customwizard/customwizardparameters.cpp b/src/plugins/projectexplorer/customwizard/customwizardparameters.cpp
index 323c0d6100e..da071f11922 100644
--- a/src/plugins/projectexplorer/customwizard/customwizardparameters.cpp
+++ b/src/plugins/projectexplorer/customwizard/customwizardparameters.cpp
@@ -922,9 +922,9 @@ void CustomWizardContext::reset()
     baseReplacements.insert(QLatin1String("CurrentTime:RFC"),
                             currentTime.toString(Qt::RFC2822Date));
     baseReplacements.insert(QLatin1String("CurrentDate:Locale"),
-                            currentDate.toString(Qt::DefaultLocaleShortDate));
+                            QLocale::system().toString(currentDate, QLocale::ShortFormat));
     baseReplacements.insert(QLatin1String("CurrentTime:Locale"),
-                            currentTime.toString(Qt::DefaultLocaleShortDate));
+                            QLocale::system().toString(currentTime, QLocale::ShortFormat));
     replacements.clear();
     path.clear();
     targetPath.clear();
diff --git a/src/plugins/vcsbase/cleandialog.cpp b/src/plugins/vcsbase/cleandialog.cpp
index 0f358ab1de0..46f3acb0212 100644
--- a/src/plugins/vcsbase/cleandialog.cpp
+++ b/src/plugins/vcsbase/cleandialog.cpp
@@ -211,7 +211,8 @@ void CleanDialog::addFile(const QString &workingDirectory, QString fileName, boo
     nameItem->setData(QVariant(isDir), Internal::isDirectoryRole);
     // Tooltip with size information
     if (fi.isFile()) {
-        const QString lastModified = fi.lastModified().toString(Qt::DefaultLocaleShortDate);
+        const QString lastModified =
+                QLocale::system().toString(fi.lastModified(), QLocale::ShortFormat);
         nameItem->setToolTip(tr("%n bytes, last modified %1.", nullptr,
                                 fi.size()).arg(lastModified));
     }