Index: wflow-py/wflow/wflow_bmi.py
===================================================================
diff -u -rd8108b35c021a0624372a8ea9537ff97300bffd1 -reca832469efaa693334860f402655660742cc76f
--- wflow-py/wflow/wflow_bmi.py	(.../wflow_bmi.py)	(revision d8108b35c021a0624372a8ea9537ff97300bffd1)
+++ wflow-py/wflow/wflow_bmi.py	(.../wflow_bmi.py)	(revision eca832469efaa693334860f402655660742cc76f)
@@ -233,7 +233,17 @@
         self.bmilogger.debug("get_current_time: " + str(st))
         return st
 
+    def get_time_step(self):
+        """
+        Get the model time steps in units since the epoch
 
+        :return: duration of one time step of the model in the units returned by the function get_time_units
+        """
+        ts = self.dynModel.timestepsecs
+        self.bmilogger.debug("get_time_step: " + str(ts))
+        return ts
+
+
     def get_var(self, long_var_name):
         """
         Return an nd array from model library