diff -r 1f60a119863a -r f74dbdd45754 src/share/vm/memory/genCollectedHeap.cpp
--- a/src/share/vm/memory/genCollectedHeap.cpp	Mon Mar 02 11:08:09 2015 +0100
+++ b/src/share/vm/memory/genCollectedHeap.cpp	Fri May 17 17:24:20 2013 +0200
@@ -384,7 +384,6 @@
 
     bool complete = full && (max_level == (n_gens()-1));
     const char* gc_cause_prefix = complete ? "Full GC" : "GC";
-    gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
     // The PrintGCDetails logging starts before we have incremented the GC id. We will do that later
     // so we can assume here that the next GC id is what we want.