Index: wflow-py/wflow/wf_DynamicFramework.py
===================================================================
diff -u -r2aef8b1c3a3d5c674d3112cc60a67f20594c2cb8 -rf8eeac4d7ddcf672ca5ebc6fb5557847705cbb62
--- wflow-py/wflow/wf_DynamicFramework.py	(.../wf_DynamicFramework.py)	(revision 2aef8b1c3a3d5c674d3112cc60a67f20594c2cb8)
+++ wflow-py/wflow/wf_DynamicFramework.py	(.../wf_DynamicFramework.py)	(revision f8eeac4d7ddcf672ca5ebc6fb5557847705cbb62)
@@ -1423,7 +1423,7 @@
 
       seconds_since_epoch = time.mktime(self.datetime_firststep.timetuple())
 
-      return seconds_since_epoch + (self._d_lastTimestep - self._d_firstTimestep) * self._userModel().timestepsecs
+      return seconds_since_epoch + (self._d_lastTimestep - self._d_firstTimestep + 1) * self._userModel().timestepsecs
 
   def wf_supplyStartTime(self):
       """