diff --git a/ChangeLog b/ChangeLog
index 53fa755798..dc15c12742 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2004-04-05  Thomas Vander Stichele  <thomas at apestaart dot org>
+
+	* gst/gstinfo.h: adding Ronald's timestamp debugging defines
+
 2004-04-05  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* testsuite/elements/Makefile.am:
diff --git a/gst/gstinfo.h b/gst/gstinfo.h
index 7f76ce2339..fd2ecc1c88 100644
--- a/gst/gstinfo.h
+++ b/gst/gstinfo.h
@@ -521,6 +521,14 @@ G_CONST_RETURN gchar*
 
 void gst_debug_print_stack_trace (void);
 
+/* timestamp debugging macros */
+#define GST_TIME_FORMAT "%u:%02u:%02u:%09u"
+#define GST_TIME_ARGS(t) \
+	(guint) (t / (GST_SECOND * 60 * 60)), \
+	(guint) ((t / (GST_SECOND * 60)) % 60), \
+	(guint) ((t / GST_SECOND) % 60), \
+	(guint) (t % GST_SECOND)
+
 G_END_DECLS
 
 #endif /* __GSTINFO_H__ */