diff --git a/src/lib/Hydra/Controller/JobsetEval.pm b/src/lib/Hydra/Controller/JobsetEval.pm
index af1d7b15..592851b5 100644
--- a/src/lib/Hydra/Controller/JobsetEval.pm
+++ b/src/lib/Hydra/Controller/JobsetEval.pm
@@ -36,6 +36,11 @@ sub view : Chained('eval') PathPart('') Args(0) {
         if ($compare =~ /^\d+$/) {
             $eval2 = $c->model('DB::JobsetEvals')->find($compare)
                 or notFound($c, "Evaluation $compare doesn't exist.");
+	} elsif ($compare =~ /^-(\d+)$/) {
+	    my $t = int($1);
+            $eval2 = $c->stash->{jobset}->jobsetevals->find(
+		{ hasnewbuilds => 1, timestamp => {'<=', $eval->timestamp - $t} },
+		{ order_by => "timestamp desc", rows => 1});
         } elsif (defined $compare && $compare =~ /^($jobsetNameRE)$/) {
             my $j = $c->stash->{project}->jobsets->find({name => $compare})
                 or notFound($c, "Jobset $compare doesn't exist.");
diff --git a/src/root/jobset-eval.tt b/src/root/jobset-eval.tt
index f622c6fe..b328bd81 100644
--- a/src/root/jobset-eval.tt
+++ b/src/root/jobset-eval.tt
@@ -4,7 +4,11 @@
 <div class="btn-group pull-right">
   <a class="btn btn-primary dropdown-toggle" data-toggle="dropdown" href="#"><i class="icon-white icon-eye-open"></i> Compare to...</a>
   <ul class="dropdown-menu">
-    <li><a href="?">Preceding evaluation in the same jobset</tt></a></li>
+    <li><a href="?">Preceding evaluation in this jobset</tt></a></li>
+    <li class="divider"></li>
+    <li><a href="?compare=-[% 24 * 60 * 60 %]">This jobset <strong>one day</strong> earlier</tt></a></li>
+    <li><a href="?compare=-[% 7 * 24 * 60 * 60 %]">This jobset <strong>one week</strong> earlier</tt></a></li>
+    <li><a href="?compare=-[% 31 * 24 * 60 * 60 %]">This jobset <strong>one month</strong> earlier</tt></a></li>
     [% IF project.jobsets_rs.count > 1 %]
       <li class="divider"></li>
       [% FOREACH j IN project.jobsets.sort('name'); IF j.name != jobset.name %]
@@ -19,6 +23,8 @@
 project=otherEval.jobset.project.name jobset=otherEval.jobset.name %] evaluation <a href="[%
 c.uri_for(c.controller('JobsetEval').action_for('view'),
 [otherEval.id]) %]">[% otherEval.id %]</a>.</p>
+[% ELSE %]
+<div class="alert">Couldn't find an evaluation to compare to.</div>
 [% END %]
 
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