diff --git a/app/src/MainWindow.cpp b/app/src/MainWindow.cpp
index 3dcbf5e..2e6506b 100644
--- a/app/src/MainWindow.cpp
+++ b/app/src/MainWindow.cpp
@@ -26,6 +26,7 @@
 #include <DataSource/DataSourceWidget.h>
 #include <SidePane/SqpSidePane.h>
 #include <SqpApplication.h>
+#include <Time/TimeController.h>
 #include <TimeWidget/TimeWidget.h>
 #include <Variable/Variable.h>
 #include <Visualization/VisualizationController.h>
@@ -168,12 +169,20 @@ MainWindow::MainWindow(QWidget *parent)
     this->menuBar()->addAction(tr("File"));
     auto mainToolBar = this->addToolBar(QStringLiteral("MainToolBar"));
 
-    mainToolBar->addWidget(new TimeWidget{});
+    auto timeWidget = new TimeWidget{};
+    mainToolBar->addWidget(timeWidget);
 
     // Widgets / controllers connections
+
+    // DataSource
     connect(&sqpApp->dataSourceController(), SIGNAL(dataSourceItemSet(DataSourceItem *)),
             m_Ui->dataSourceWidget, SLOT(addDataSource(DataSourceItem *)));
 
+    // Time
+    connect(timeWidget, SIGNAL(timeUpdated(SqpDateTime)), &sqpApp->timeController(),
+            SLOT(onTimeToUpdate(SqpDateTime)));
+
+    // Variable
     qRegisterMetaType<std::shared_ptr<Variable> >();
     connect(&sqpApp->visualizationController(), SIGNAL(variableCreated(std::shared_ptr<Variable>)),
             m_Ui->view, SLOT(displayVariable(std::shared_ptr<Variable>)));
diff --git a/gui/include/TimeWidget/TimeWidget.h b/gui/include/TimeWidget/TimeWidget.h
index 014bea1..de7ee69 100644
--- a/gui/include/TimeWidget/TimeWidget.h
+++ b/gui/include/TimeWidget/TimeWidget.h
@@ -3,6 +3,8 @@
 
 #include <QWidget>
 
+#include <Data/SqpDateTime.h>
+
 namespace Ui {
 class TimeWidget;
 } // Ui
@@ -14,6 +16,15 @@ public:
     explicit TimeWidget(QWidget *parent = 0);
     virtual ~TimeWidget();
 
+signals:
+    /// Signal emitted when the time parameters has beed updated
+    void timeUpdated(SqpDateTime time);
+
+public slots:
+    /// slot called when time parameters update has ben requested
+    void onTimeUpdateRequested();
+
+
 private:
     Ui::TimeWidget *ui;
 };
diff --git a/gui/src/TimeWidget/TimeWidget.cpp b/gui/src/TimeWidget/TimeWidget.cpp
index 69cdd16..3e21cb5 100644
--- a/gui/src/TimeWidget/TimeWidget.cpp
+++ b/gui/src/TimeWidget/TimeWidget.cpp
@@ -1,12 +1,29 @@
 #include "TimeWidget/TimeWidget.h"
 #include "ui_TimeWidget.h"
 
+
 TimeWidget::TimeWidget(QWidget *parent) : QWidget{parent}, ui{new Ui::TimeWidget}
 {
     ui->setupUi(this);
+
+    // Connection
+    connect(ui->startDateTimeEdit, &QDateTimeEdit::dateTimeChanged, this,
+            &TimeWidget::onTimeUpdateRequested);
+
+    connect(ui->endDateTimeEdit, &QDateTimeEdit::dateTimeChanged, this,
+            &TimeWidget::onTimeUpdateRequested);
 }
 
 TimeWidget::~TimeWidget()
 {
     delete ui;
 }
+
+void TimeWidget::onTimeUpdateRequested()
+{
+    auto dateTime = SqpDateTime{
+        static_cast<double>(ui->startDateTimeEdit->dateTime().toMSecsSinceEpoch() / 1000.),
+        static_cast<double>(ui->endDateTimeEdit->dateTime().toMSecsSinceEpoch()) / 1000.};
+
+    emit timeUpdated(std::move(dateTime));
+}