diff --git a/ospf6d/ospf6_neighbor.c b/ospf6d/ospf6_neighbor.c
index 8a5d698..f6c3aea 100644
--- a/ospf6d/ospf6_neighbor.c
+++ b/ospf6d/ospf6_neighbor.c
@@ -89,7 +89,7 @@
             buf, oi->interface->name);
   on->ospf6_if = oi;
   on->state = OSPF6_NEIGHBOR_DOWN;
-  gettimeofday (&on->last_changed, (struct timezone *) NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &on->last_changed);
   on->router_id = router_id;
 
   on->summary_list = ospf6_lsdb_create (on);
@@ -154,7 +154,7 @@
   if (prev_state == next_state)
     return;
 
-  gettimeofday (&on->last_changed, (struct timezone *) NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &on->last_changed);
 
   /* log */
   if (IS_OSPF6_DEBUG_NEIGHBOR (STATE))
@@ -568,7 +568,7 @@
   }
 #endif /*HAVE_GETNAMEINFO*/
 
-  gettimeofday (&now, NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
 
   /* Dead time */
   h = m = s = 0;
@@ -630,7 +630,7 @@
   inet_ntop (AF_INET, &on->drouter, drouter, sizeof (drouter));
   inet_ntop (AF_INET, &on->bdrouter, bdrouter, sizeof (bdrouter));
 
-  gettimeofday (&now, NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
   timersub (&now, &on->last_changed, &res);
   timerstring (&res, duration, sizeof (duration));
 
@@ -654,7 +654,7 @@
   inet_ntop (AF_INET, &on->drouter, drouter, sizeof (drouter));
   inet_ntop (AF_INET, &on->bdrouter, bdrouter, sizeof (bdrouter));
 
-  gettimeofday (&now, NULL);
+  quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
   timersub (&now, &on->last_changed, &res);
   timerstring (&res, duration, sizeof (duration));