Index: trunk/BNC/src/combination/bnccomb.cpp
===================================================================
--- trunk/BNC/src/combination/bnccomb.cpp	(revision 10609)
+++ trunk/BNC/src/combination/bnccomb.cpp	(revision 10610)
@@ -533,6 +533,5 @@
     // ----------------------------
     if (BNC_CORE->mode() != t_bncCore::batchPostProcessing) {
-      if ((newClk._time >= currentTime) ||       // future time stamp
-          (currentTime - newClk._time) > 60.0) { // very old data sets
+      if (fabs(currentTime - newClk._time) > 60.0) { // future or very old data sets
   #ifdef BNC_DEBUG_CMB
         emit newMessage("bncComb: future or very old data sets: " + acName.toLatin1() + " " + newClk._prn.toString().c_str() +