diff --git a/xCAT-probe/lib/perl/probe_utils.pm b/xCAT-probe/lib/perl/probe_utils.pm
index 2400212c2..e309def96 100644
--- a/xCAT-probe/lib/perl/probe_utils.pm
+++ b/xCAT-probe/lib/perl/probe_utils.pm
@@ -580,10 +580,9 @@ sub convert_second_to_time {
         } else {
             $tmp_second = $second_in % 60;
         }
-        if ($tmp_second == 0) {
-            push @time, "00";
-        } elsif ($tmp_second < 10) {
-            push @time,  "0" . "$tmp_second";
+
+        if ($tmp_second < 10) {
+            push @time,  "0$tmp_second";
         } else {
             push @time, "$tmp_second";
         }
diff --git a/xCAT-probe/subcmds/osdeploy b/xCAT-probe/subcmds/osdeploy
index c04c3af27..6a92ecc1a 100755
--- a/xCAT-probe/subcmds/osdeploy
+++ b/xCAT-probe/subcmds/osdeploy
@@ -65,9 +65,10 @@ Options:
     -r : Trigger 'Replay history' mode. Follow the duration of rolling back. Units are 'h' (hour) or 'm' (minute)
          Supported format examples: 3h30m (3 hours and 30 minutes ago), 2h (2 hours ago), 40m (40 minutes ago) and 3 (3 hours ago).
          If unit is not specified, hour will be used by default.
-    -p : Performance of provision for each node and all. 
-         Supported level: 1 (show how much time spent for provision), 
-         2 (show how much time spent for DHCP, Download RPM packages, Run Postscripts, Run Postbootscripts).
+    -p Show elapsed time of each stage during provision for each node
+         Support 2 output format:
+         1 Elapsed time of each stage during provision
+         2 Elapsed time from power on node to each stage starting
 ";