Index: simulator/run.py
===================================================================
diff -u -refb0dcc34f39f35d41f43cca9667db17fd97c844 -r7e3d9ea9dd57df70239038bab352a6a049696dbc
--- simulator/run.py	(.../run.py)	(revision efb0dcc34f39f35d41f43cca9667db17fd97c844)
+++ simulator/run.py	(.../run.py)	(revision 7e3d9ea9dd57df70239038bab352a6a049696dbc)
@@ -182,6 +182,7 @@
     sldUfVolume: QtWidgets.QSlider
     sldArterialValue: QtWidgets.QSlider
     sldVenousValue: QtWidgets.QSlider
+    sldDurationValue: QtWidgets.QSlider
     # tables
     tblSalineSubMode: QtWidgets.QTableWidget
     tblSalineUFStates: QtWidgets.QTableWidget
@@ -202,6 +203,7 @@
         """
         self.spnDurationMin = self.find_spinbox('spnDurationMin')
         self.spnDurationMax = self.find_spinbox('spnDurationMax')
+        self.sldDurationValue = self.find_slider('sldDurationValue')
         self.spnUFVolumeMin = self.find_spinbox('spnUFVolumeMin')
         self.spnUFVolumeMax = self.find_spinbox('spnUFVolumeMax')
         self.spnDialysateMin = self.find_spinbox('spnDialysateMin')
@@ -211,6 +213,8 @@
         self.timer.start(1000)
         self.timer.timeout.connect(self.do_ranges_data)
 
+        self.sldDurationValue.valueChanged.connect(self.do_duration_data)
+
     def setup_uf_adjustment(self):
         """
         sets up the treatment Ultrafiltration adjustment GUI section
@@ -346,6 +350,14 @@
         self.spnVenousLimitHigh.setValue(Ranges.VENOUS_PRESSURE_HIGH_DEF)
 
     @Slot()
+    def do_duration_data(self, value):
+        """
+        sends the duration message
+        :return: none
+        """
+        denaliMessages.setTreatmentTime(self.spnDurationMax.value() * 60, value)
+
+    @Slot()
     def do_sb_accept(self):
         """
         the slot for accept saline bolus button
@@ -471,9 +483,14 @@
         :return: none
         """
         if self.chkRangesBroadcast.isChecked():
+            duration_min = self.spnDurationMin.value()
+            duration_max = self.spnDurationMax.value()
+            self.sldDurationValue.setMinimum(duration_min * 60 )
+            self.sldDurationValue.setMaximum(duration_max * 60 )
+
             denaliMessages.setTreatmentParamRanges(
-                self.spnDurationMin.value(),
-                self.spnDurationMax.value(),
+                duration_min,
+                duration_max,
                 self.spnUFVolumeMin.value(),
                 self.spnUFVolumeMax.value(),
                 self.spnDialysateMin.value(),