Index: wflow-py/wflow/wflow_hbv.py
===================================================================
diff -u -r4143969ebd6b276284ea6e4198ee693bd6ab506a -r4f8d31cc84a0ba96e9ef23399d92cbe5517aec2d
--- wflow-py/wflow/wflow_hbv.py	(.../wflow_hbv.py)	(revision 4143969ebd6b276284ea6e4198ee693bd6ab506a)
+++ wflow-py/wflow/wflow_hbv.py	(.../wflow_hbv.py)	(revision 4f8d31cc84a0ba96e9ef23399d92cbe5517aec2d)
@@ -1556,7 +1556,7 @@
             print("Failed to get timesteps from runinfo file: " + runinfoFile)
             sys.exit(2)
     else:
-        starttime = dt.datetime(1990,0o1,0o1)
+        starttime = dt.datetime(1990,1,1)
 
     if _lastTimeStep < _firstTimeStep:
         print("The starttimestep (" + str(_firstTimeStep) +") is smaller than the last timestep (" + str(_lastTimeStep) + ")")