diff --git a/gui/src/DataSource/DataSourceWidget.cpp b/gui/src/DataSource/DataSourceWidget.cpp
index 454f76b..85007a7 100644
--- a/gui/src/DataSource/DataSourceWidget.cpp
+++ b/gui/src/DataSource/DataSourceWidget.cpp
@@ -51,6 +51,7 @@ DataSourceWidget::DataSourceWidget(QWidget *parent) : QWidget{parent}, ui{new Ui
 
     // Connection to filter tree
     connect(ui->filterLineEdit, &QLineEdit::textChanged, this, &DataSourceWidget::filterChanged);
+    ui->filterLineEdit->setText("tha_ion_s");
 }
 
 DataSourceWidget::~DataSourceWidget() noexcept
diff --git a/gui/src/TimeWidget/TimeWidget.cpp b/gui/src/TimeWidget/TimeWidget.cpp
index 050eae3..1a6bcc2 100644
--- a/gui/src/TimeWidget/TimeWidget.cpp
+++ b/gui/src/TimeWidget/TimeWidget.cpp
@@ -42,8 +42,8 @@ TimeWidget::TimeWidget(QWidget *parent)
             &TimeController::onTimeNotify);
 
     // Initialisation
-    auto endDateTime = QDateTime::currentDateTimeUtc();
-    auto startDateTime = endDateTime.addSecs(-3600); // one hour before
+    auto endDateTime = QDateTime{QDate{2012, 12, 11}, QTime{0, 0}, Qt::UTC};
+    auto startDateTime = QDateTime{QDate{2012, 12, 10}, QTime{0, 0}, Qt::UTC}; // one hour before
 
     ui->startDateTimeEdit->setDateTime(startDateTime);
     ui->endDateTimeEdit->setDateTime(endDateTime);