Index: trunk/MagicSoft/Mars/mbase/MTime.h
===================================================================
--- trunk/MagicSoft/Mars/mbase/MTime.h	(revision 1600)
+++ trunk/MagicSoft/Mars/mbase/MTime.h	(revision 1629)
@@ -86,4 +86,9 @@
 };
 
+inline Double_t operator-(MTime &t1, MTime &t2)
+{
+    return (Double_t)t1.GetTimeLo()-(Double_t)t2.GetTimeLo();
+}
+
 inline Bool_t operator<(MTime &t1, MTime &t2)
 {