diff --git a/framework/core/src/Core/Search/Discussion/Gambit/CreatedGambit.php b/framework/core/src/Core/Search/Discussion/Gambit/CreatedGambit.php
index 3696d180e..65cfe0513 100644
--- a/framework/core/src/Core/Search/Discussion/Gambit/CreatedGambit.php
+++ b/framework/core/src/Core/Search/Discussion/Gambit/CreatedGambit.php
@@ -18,8 +18,6 @@ use LogicException;
 class CreatedGambit extends AbstractRegexGambit
 {
     /**
-     * http://stackoverflow.com/a/8270148/3158312
-     *
      * {@inheritdoc}
      */
     protected $pattern = 'created:(\d{4}\-\d\d\-\d\d)(\.\.(\d{4}\-\d\d\-\d\d))?';
@@ -33,10 +31,14 @@ class CreatedGambit extends AbstractRegexGambit
             throw new LogicException('This gambit can only be applied on a DiscussionSearch');
         }
 
-        if (empty($matches[4])) { // Single date
-            $search->getQuery()->whereDate('start_time', $negate ? '!=' : '=', $matches[2]);
-        } else { // Range: date..date
-            $search->getQuery()->whereBetween('start_time', [$matches[2], $matches[4]], 'and', $negate);
+        // If we've just been provided with a single YYYY-MM-DD date, then find
+        // discussions that were started on that exact date. But if we've been
+        // provided with a YYYY-MM-DD..YYYY-MM-DD range, then find discussions
+        // that were started during that period.
+        if (empty($matches[3])) {
+            $search->getQuery()->whereDate('start_time', $negate ? '!=' : '=', $matches[1]);
+        } else {
+            $search->getQuery()->whereBetween('start_time', [$matches[1], $matches[3]], 'and', $negate);
         }
     }
 }