diff --git a/TimeSeries.pm b/TimeSeries.pm
index 68087b0..c70e9a0 100644
--- a/TimeSeries.pm
+++ b/TimeSeries.pm
@@ -616,11 +616,27 @@ sub get_ticks {
 	$nexttime = sub { return $_[0] + 60 };
     }
 
-    my $time = $firsttime;
+    my $time = $nexttime->($firsttime);
+    my $llb;
     for (;;) {
-	push @ticks, [$time, strftime($label, localtime($time))];
+        my $lb = strftime($label, localtime($time));
+        my $dlb = $lb;
+        if ($llb) {
+            my @lc = split(/(\d+)/, $llb);
+            my @c  = split(/(\d+)/, $lb);
+            for my $i (0 .. $#c) {
+                if ($c[$i] eq $lc[$i]) {
+                    $c[$i] = " " x length($c[$i]);
+                } else {
+                    last;
+                }
+            }
+            $dlb = join("", @c);
+        }
+	push @ticks, [$time, $dlb];
 	if ($time > $lasttime) {last}
 	$time = $nexttime->($time);
+        $llb = $lb;
     }
 
     return @ticks;