Index: trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java	(revision 5958)
+++ trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java	(revision 5959)
@@ -160,5 +160,5 @@
             }
 
-            int diff = (int) (bounds[1].getTime() - bounds[0].getTime());
+            int diff = (int) (bounds[1].getTime() - bounds[0].getTime()) / 1000;
             ts += String.format(" (%d:%02d)", diff / 3600, (diff % 3600) / 60);
         }