diff --git a/src/gui/properties/speedplotview.h b/src/gui/properties/speedplotview.h
index 6c92166fc..ea48e00ee 100644
--- a/src/gui/properties/speedplotview.h
+++ b/src/gui/properties/speedplotview.h
@@ -69,7 +69,7 @@ public:
 
     struct PointData
     {
-        uint x;
+        qint64 x;
         int y[NB_GRAPHS];
     };
 
diff --git a/src/gui/properties/speedwidget.cpp b/src/gui/properties/speedwidget.cpp
index fde4eb5cf..513f77cea 100644
--- a/src/gui/properties/speedwidget.cpp
+++ b/src/gui/properties/speedwidget.cpp
@@ -137,7 +137,7 @@ void SpeedWidget::update()
     const BitTorrent::SessionStatus &btStatus = BitTorrent::Session::instance()->status();
 
     SpeedPlotView::PointData point;
-    point.x = QDateTime::currentDateTime().toTime_t();
+    point.x = QDateTime::currentMSecsSinceEpoch() / 1000;
     point.y[SpeedPlotView::UP] = btStatus.uploadRate;
     point.y[SpeedPlotView::DOWN] = btStatus.downloadRate;
     point.y[SpeedPlotView::PAYLOAD_UP] = btStatus.payloadUploadRate;
diff --git a/src/webui/api/authcontroller.cpp b/src/webui/api/authcontroller.cpp
index 71d190dc6..e2422c6f8 100644
--- a/src/webui/api/authcontroller.cpp
+++ b/src/webui/api/authcontroller.cpp
@@ -78,7 +78,7 @@ void AuthController::logoutAction()
 
 bool AuthController::isBanned() const
 {
-    const uint now = QDateTime::currentDateTime().toTime_t();
+    const qint64 now = QDateTime::currentMSecsSinceEpoch() / 1000;
     const FailedLogin failedLogin = m_clientFailedLogins.value(sessionManager()->clientId());
 
     bool isBanned = (failedLogin.bannedAt > 0);
@@ -103,6 +103,6 @@ void AuthController::increaseFailedAttempts()
     if (failedLogin.failedAttemptsCount == MAX_AUTH_FAILED_ATTEMPTS) {
         // Max number of failed attempts reached
         // Start ban period
-        failedLogin.bannedAt = QDateTime::currentDateTime().toTime_t();
+        failedLogin.bannedAt = QDateTime::currentMSecsSinceEpoch() / 1000;
     }
 }
diff --git a/src/webui/api/authcontroller.h b/src/webui/api/authcontroller.h
index 88d8cf861..287aee3da 100644
--- a/src/webui/api/authcontroller.h
+++ b/src/webui/api/authcontroller.h
@@ -53,7 +53,7 @@ private:
     struct FailedLogin
     {
         int failedAttemptsCount = 0;
-        uint bannedAt = 0;
+        qint64 bannedAt = 0;
     };
     mutable QHash<QString, FailedLogin> m_clientFailedLogins;
 };
diff --git a/src/webui/webapplication.cpp b/src/webui/webapplication.cpp
index 8291a2371..710404823 100644
--- a/src/webui/webapplication.cpp
+++ b/src/webui/webapplication.cpp
@@ -547,7 +547,7 @@ void WebApplication::sessionInitialize()
     if (!sessionId.isEmpty()) {
         m_currentSession = m_sessions.value(sessionId);
         if (m_currentSession) {
-            const uint now = QDateTime::currentDateTime().toTime_t();
+            const qint64 now = QDateTime::currentMSecsSinceEpoch() / 1000;
             if ((now - m_currentSession->m_timestamp) > INACTIVE_TIME) {
                 // session is outdated - removing it
                 delete m_sessions.take(sessionId);
@@ -605,7 +605,7 @@ void WebApplication::sessionStart()
     Q_ASSERT(!m_currentSession);
 
     // remove outdated sessions
-    const uint now = QDateTime::currentDateTime().toTime_t();
+    const qint64 now = QDateTime::currentMSecsSinceEpoch() / 1000;
     foreach (const auto session, m_sessions) {
         if ((now - session->timestamp()) > INACTIVE_TIME)
             delete m_sessions.take(session->id());
@@ -737,7 +737,7 @@ QString WebSession::id() const
     return m_sid;
 }
 
-uint WebSession::timestamp() const
+qint64 WebSession::timestamp() const
 {
     return m_timestamp;
 }
@@ -754,5 +754,5 @@ void WebSession::setData(const QString &id, const QVariant &data)
 
 void WebSession::updateTimestamp()
 {
-    m_timestamp = QDateTime::currentDateTime().toTime_t();
+    m_timestamp = QDateTime::currentMSecsSinceEpoch() / 1000;
 }
diff --git a/src/webui/webapplication.h b/src/webui/webapplication.h
index 4cfdfe78b..1d613eccb 100644
--- a/src/webui/webapplication.h
+++ b/src/webui/webapplication.h
@@ -59,7 +59,7 @@ public:
     explicit WebSession(const QString &sid);
 
     QString id() const override;
-    uint timestamp() const;
+    qint64 timestamp() const;
 
     QVariant getData(const QString &id) const override;
     void setData(const QString &id, const QVariant &data) override;
@@ -68,7 +68,7 @@ private:
     void updateTimestamp();
 
     const QString m_sid;
-    uint m_timestamp;
+    qint64 m_timestamp;
     QVariantHash m_data;
 };