--- /dev/null
+--- a/apps/app_queue.c
++++ b/apps/app_queue.c
+@@ -4614,8 +4614,12 @@ static int is_longest_waiting_caller(str
+ * will be unused until the first caller is picked up.
+ */
+ if (ch->start < caller->start && !ch->pending) {
+- ast_debug(1, "Queue %s has a call at position %i that's been waiting longer (%li vs %li)\n",
+- q->name, ch->pos, ch->start, caller->start);
++ char time1[AST_TIME_T_LEN];
++ char time2[AST_TIME_T_LEN];
++ ast_time_t_to_string(ch->start, time1, sizeof(time1));
++ ast_time_t_to_string(caller->start, time2, sizeof(time2));
++ ast_debug(1, "Queue %s has a call at position %i that's been waiting longer (%s vs %s)\n",
++ q->name, ch->pos, time1, time2);
+ is_longest_waiting = 0;
+ break;
+ }