diff -U4 -r exim-4.69/src/tod.c exim-4.69+monthly-logs/src/tod.c
--- exim-4.69/src/tod.c	2007-01-08 10:50:18.000000000 +0000
+++ exim-4.69+monthly-logs/src/tod.c	2008-01-26 10:10:14.000000000 +0000
@@ -95,10 +95,10 @@
   #ifdef TESTING_LOG_DATESTAMP
   (void) sprintf(CS timebuf, "%04d%02d%02d%02d%02d",
     1900 + t->tm_year, 1 + t->tm_mon, t->tm_mday, t->tm_hour, t->tm_min);
   #else
-  (void) sprintf(CS timebuf, "%04d%02d%02d",
-    1900 + t->tm_year, 1 + t->tm_mon, t->tm_mday);
+  (void) sprintf(CS timebuf, "%04d%02d",
+    1900 + t->tm_year, 1 + t->tm_mon);
   #endif
   break;
 
   /* Format used in BSD inbox separator lines. Sort-of documented in RFC 976