diff --git a/includes/pager.inc b/includes/pager.inc
index a5d3e6b..c7416a5 100644
--- a/includes/pager.inc
+++ b/includes/pager.inc
@@ -188,8 +188,10 @@ function pager_find_page($element = 0) {
   $page = isset($_GET['page']) ? $_GET['page'] : '';
   $page_array = explode(',', $page);
   if (!isset($page_array[$element])) {
-    $page_array[$element] = 0;
+    $page_array[$element] = 1;
   }
+  // Translate human readable page numbers to PHP offset logic.
+  $page_array[$element]--;
   return (int) $page_array[$element];
 }
 
@@ -600,7 +602,8 @@ function theme_pager_link($variables) {
 
   $page = isset($_GET['page']) ? $_GET['page'] : '';
   if ($new_page = implode(',', pager_load_array($page_new[$element], $element, explode(',', $page)))) {
-    $parameters['page'] = $new_page;
+    // Translate PHP offset logic to human readable page numbers.
+    $parameters['page'] = $new_page + 1;
   }
 
   $query = array();
diff --git a/modules/comment/comment.module b/modules/comment/comment.module
index f9af40a..baba2cf 100644
--- a/modules/comment/comment.module
+++ b/modules/comment/comment.module
@@ -1793,7 +1793,7 @@ function comment_get_display_ordinal($cid, $node_type) {
 function comment_get_display_page($cid, $node_type) {
   $ordinal = comment_get_display_ordinal($cid, $node_type);
   $comments_per_page = variable_get('comment_default_per_page_' . $node_type, 50);
-  return floor($ordinal / $comments_per_page);
+  return floor($ordinal / $comments_per_page) + 1;
 }
 
 /**
diff --git a/modules/comment/comment.test b/modules/comment/comment.test
index 2e96ba3..d2d3ff2 100644
--- a/modules/comment/comment.test
+++ b/modules/comment/comment.test
@@ -415,7 +415,7 @@ class CommentInterfaceTest extends CommentHelperCase {
     $this->setCommentsPerPage(2);
     $comment_new_page = $this->postComment($this->node, $this->randomName(), $this->randomName(), TRUE);
     $this->assertTrue($this->commentExists($comment_new_page), t('Page one exists. %s'));
-    $this->drupalGet('node/' . $this->node->nid, array('query' => array('page' => 1)));
+    $this->drupalGet('node/' . $this->node->nid, array('query' => array('page' => 2)));
     $this->assertTrue($this->commentExists($reply, TRUE), t('Page two exists. %s'));
     $this->setCommentsPerPage(50);
 
@@ -1137,13 +1137,13 @@ class CommentPagerTest extends CommentHelperCase {
     $this->assertFalse($this->commentExists($comments[2]), t('Comment 3 does not appear on page 1.'));
 
     // Check the second page.
-    $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 1)));
+    $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 2)));
     $this->assertTrue($this->commentExists($comments[1]), t('Comment 2 appears on page 2.'));
     $this->assertFalse($this->commentExists($comments[0]), t('Comment 1 does not appear on page 2.'));
     $this->assertFalse($this->commentExists($comments[2]), t('Comment 3 does not appear on page 2.'));
 
     // Check the third page.
-    $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 2)));
+    $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 3)));
     $this->assertTrue($this->commentExists($comments[2]), t('Comment 3 appears on page 3.'));
     $this->assertFalse($this->commentExists($comments[0]), t('Comment 1 does not appear on page 3.'));
     $this->assertFalse($this->commentExists($comments[1]), t('Comment 2 does not appear on page 3.'));
diff --git a/modules/entity/tests/entity_query.test b/modules/entity/tests/entity_query.test
index 49cf7b8..2705f3c 100644
--- a/modules/entity/tests/entity_query.test
+++ b/modules/entity/tests/entity_query.test
@@ -1274,7 +1274,7 @@ class EntityFieldQueryTestCase extends DrupalWebTestCase {
    */
   function testEntityFieldQueryPager() {
     // Test pager in propertyQuery
-    $_GET['page'] = '0,1';
+    $_GET['page'] = '1,2';
     $query = new EntityFieldQuery();
     $query
       ->entityCondition('entity_type', 'test_entity_bundle_key')
@@ -1298,7 +1298,7 @@ class EntityFieldQueryTestCase extends DrupalWebTestCase {
     ), t('Test pager integration in propertyQuery: page 2.'), TRUE);
 
     // Test pager in field storage
-    $_GET['page'] = '0,1';
+    $_GET['page'] = '1,2';
     $query = new EntityFieldQuery();
     $query
       ->entityCondition('entity_type', 'test_entity_bundle_key')
diff --git a/modules/search/search.test b/modules/search/search.test
index a6ed0df..b908df8 100644
--- a/modules/search/search.test
+++ b/modules/search/search.test
@@ -450,7 +450,7 @@ class SearchRankingTestCase extends DrupalWebTestCase {
   function testHTMLRankings() {
     // Login with sufficient privileges.
     $this->drupalLogin($this->drupalCreateUser(array('create page content')));
-    
+
     // Test HTML tags with different weights.
     $sorted_tags = array('h1', 'h2', 'h3', 'h4', 'a', 'h5', 'h6', 'notag');
     $shuffled_tags = $sorted_tags;
@@ -482,7 +482,7 @@ class SearchRankingTestCase extends DrupalWebTestCase {
 
     // Refresh variables after the treatment.
     $this->refreshVariables();
-    
+
     // Disable all other rankings.
     $node_ranks = array('sticky', 'promote', 'recent', 'comments', 'views');
     foreach ($node_ranks as $node_rank) {
@@ -520,7 +520,7 @@ class SearchRankingTestCase extends DrupalWebTestCase {
 
       // Assert the results.
       $this->assertEqual($set[0]['node']->nid, $node->nid, 'Search tag ranking for "<' . $tag . '>" order.');
-      
+
       // Delete node so it doesn't show up in subsequent search results.
       node_delete($node->nid);
     }
@@ -691,16 +691,16 @@ class SearchExactTestCase extends DrupalWebTestCase {
     // Test that the correct number of pager links are found for keyword search.
     $edit = array('keys' => 'love pizza');
     $this->drupalPost('search/node', $edit, t('Search'));
-    $this->assertLinkByHref('page=1', 0, '2nd page link is found for keyword search.');
-    $this->assertLinkByHref('page=2', 0, '3rd page link is found for keyword search.');
-    $this->assertLinkByHref('page=3', 0, '4th page link is found for keyword search.');
-    $this->assertNoLinkByHref('page=4', '5th page link is not found for keyword search.');
+    $this->assertLinkByHref('page=2', 0, '2nd page link is found for keyword search.');
+    $this->assertLinkByHref('page=3', 0, '3rd page link is found for keyword search.');
+    $this->assertLinkByHref('page=4', 0, '4th page link is found for keyword search.');
+    $this->assertNoLinkByHref('page=5', '5th page link is not found for keyword search.');
 
     // Test that the correct number of pager links are found for exact phrase search.
     $edit = array('keys' => '"love pizza"');
     $this->drupalPost('search/node', $edit, t('Search'));
-    $this->assertLinkByHref('page=1', 0, '2nd page link is found for exact phrase search.');
-    $this->assertNoLinkByHref('page=2', '3rd page link is not found for exact phrase search.');
+    $this->assertLinkByHref('page=2', 0, '2nd page link is found for exact phrase search.');
+    $this->assertNoLinkByHref('page=3', '3rd page link is not found for exact phrase search.');
   }
 }
 
@@ -861,7 +861,7 @@ class SearchCommentTestCase extends DrupalWebTestCase {
     $this->setRolePermissions(DRUPAL_AUTHENTICATED_RID, TRUE, TRUE);
     $this->setRolePermissions($this->admin_role, TRUE, FALSE);
     $this->checkCommentAccess('Admin user has access comments permission and no search permission, but comments should be indexed because admin user inherits authenticated user\'s permission to search', TRUE);
-    
+
   }
 
   /**
diff --git a/modules/simpletest/tests/database_test.test b/modules/simpletest/tests/database_test.test
index 87d386a..e234ab5 100644
--- a/modules/simpletest/tests/database_test.test
+++ b/modules/simpletest/tests/database_test.test
@@ -2303,19 +2303,14 @@ class DatabaseSelectPagerDefaultTestCase extends DatabaseTestCase {
     $count = db_query('SELECT COUNT(*) FROM {test_task}')->fetchField();
 
     $correct_number = $limit;
-    $num_pages = floor($count / $limit);
-
-    // If there is no remainder from rounding, subtract 1 since we index from 0.
-    if (!($num_pages * $limit < $count)) {
-      $num_pages--;
-    }
+    $num_pages = ceil($count / $limit);
 
-    for ($page = 0; $page <= $num_pages; ++$page) {
+    for ($page = 1; $page <= $num_pages; ++$page) {
       $this->drupalGet('database_test/pager_query_odd/' . $limit, array('query' => array('page' => $page)));
       $data = json_decode($this->drupalGetContent());
 
       if ($page == $num_pages) {
-        $correct_number = $count - ($limit * $page);
+        $correct_number = $count - ($limit * ($page - 1));
       }
 
       $this->assertEqual(count($data->names), $correct_number, t('Correct number of records returned by pager: @number', array('@number' => $correct_number)));
@@ -2367,7 +2362,7 @@ class DatabaseSelectPagerDefaultTestCase extends DatabaseTestCase {
    * Confirm that every pager gets a valid non-overlaping element ID.
    */
   function testElementNumbers() {
-    $_GET['page'] = '3, 2, 1, 0';
+    $_GET['page'] = '4, 3, 2, 1';
 
     $name = db_select('test', 't')->extend('PagerDefault')
       ->element(2)