diff --git a/ospf6d/ospf6_top.c b/ospf6d/ospf6_top.c
index b42962c..c4cc9fa 100644
--- a/ospf6d/ospf6_top.c
+++ b/ospf6d/ospf6_top.c
@@ -117,7 +117,7 @@
   o = XCALLOC (MTYPE_OSPF6_TOP, sizeof (struct ospf6));
 
   /* initialize */
-  gettimeofday (&o->starttime, (struct timezone *) NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &o->starttime);
   o->area_list = list_new ();
   o->area_list->cmp = ospf6_area_cmp;
   o->lsdb = ospf6_lsdb_create (o);
@@ -447,7 +447,7 @@
            router_id, VNL);
 
   /* running time */
-  gettimeofday (&now, (struct timezone *)NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
   timersub (&now, &o->starttime, &running);
   timerstring (&running, duration, sizeof (duration));
   vty_out (vty, " Running %s%s", duration, VNL);