diff --git a/src/plugins/projectexplorer/appoutputpane.cpp b/src/plugins/projectexplorer/appoutputpane.cpp
index d6644e12553..de0151e02d5 100644
--- a/src/plugins/projectexplorer/appoutputpane.cpp
+++ b/src/plugins/projectexplorer/appoutputpane.cpp
@@ -482,7 +482,13 @@ void AppOutputPane::appendMessage(RunControl *rc, const QString &out, Utils::Out
     const int index = indexOf(rc);
     if (index != -1) {
         Core::OutputWindow *window = m_runControlTabs.at(index).window;
-        window->appendMessage(out, format);
+        QString stringToWrite;
+        if (format == Utils::NormalMessageFormat || format == Utils::ErrorMessageFormat) {
+            stringToWrite = QTime::currentTime().toString();
+            stringToWrite += QLatin1String(": ");
+        }
+        stringToWrite += out;
+        window->appendMessage(stringToWrite, format);
         if (format != Utils::NormalMessageFormat) {
             if (m_runControlTabs.at(index).behaviorOnOutput == Flash)
                 flash();