--- scheduler.install	2013-07-27 18:42:28.000000000 +0100
+++ scheduler.install	2013-09-08 18:12:20.000000000 +0100
@@ -60,6 +60,7 @@ function scheduler_uninstall() {
     $variables[] = "scheduler_publish_touch_" . $type_name;
     $variables[] = "scheduler_publish_required_" . $type_name;
     $variables[] = "scheduler_publish_revision_" . $type_name;
+    $variables[] = "scheduler_publish_past_date_" . $type_name;
     $variables[] = "scheduler_unpublish_enable_" . $type_name;
     $variables[] = "scheduler_unpublish_required_" . $type_name;
     $variables[] = "scheduler_unpublish_revision_" . $type_name;
--- scheduler.module	2013-07-27 18:42:28.000000000 +0100
+++ scheduler.module	2013-09-10 09:22:17.000000000 +0100
@@ -234,6 +234,27 @@ function scheduler_form_node_type_form_a
     '#title' => t('Create a new revision on publishing'),
     '#default_value' => variable_get('scheduler_publish_revision_' . $form['#node_type']->type, 0),
   );
+  $form['scheduler']['publish']['advanced'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Advanced options'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+    '#states' => array(
+      'visible' => array(
+        ':input[name="scheduler_publish_enable"]' => array('checked' => TRUE),
+      ),
+    ),
+  );
+  $form['scheduler']['publish']['advanced']['scheduler_publish_past_date'] = array(
+    '#type' => 'radios',
+    '#title' => t('Action to be taken for publication dates in the past'),
+    '#default_value' => variable_get('scheduler_publish_past_date_' . $form['#node_type']->type, 'error'),
+    '#options' => array(
+      'error' => t('Display an error message - do not allow dates in the past'),
+      'publish' => t('Publish the content immediately after saving'),
+      'schedule' => t('Schedule the content for publication on the next cron run'),
+    ),
+  );
   $form['scheduler']['unpublish'] = array(
     '#type' => 'fieldset',
     '#title' => t('Unpublishing'),
@@ -632,7 +653,7 @@ function scheduler_node_validate($node, 
     if ($publishtime === FALSE) {
       form_set_error('publish_on', t("The 'publish on' value does not match the expected format of %time", array('%time' => format_date(REQUEST_TIME, 'custom', $date_format))));
     }
-    elseif ($publishtime && $publishtime < REQUEST_TIME) {
+    elseif ($publishtime && variable_get('scheduler_publish_past_date_' . $node->type, 'error') == 'error' && $publishtime < REQUEST_TIME) {
       form_set_error('publish_on', t("The 'publish on' date must be in the future"));
     }
   }
@@ -661,9 +682,14 @@ function scheduler_node_presave($node) {
       $node->$key = _scheduler_strtotime($node->$key);
     }
   }
-  // Right before we save the node, we need to check if a "publish on" value has been set.
-  // If it has been set, we want to make sure the node is unpublished since it will be published at a later date
-  if (isset($node->publish_on) && $node->publish_on != '' && is_numeric($node->publish_on) && $node->publish_on > REQUEST_TIME) {
+  // Publish the node immediately if the publication date is in the past.
+  if (variable_get('scheduler_publish_past_date_' . $node->type, 'error') == 'publish' && is_numeric($node->publish_on) && $node->publish_on < REQUEST_TIME) {
+    $node->publish_on = 0;
+    $node->status = 1;
+  }
+  // Otherwise, if a pubishing date has been set, make sure the node is
+  // unpublished since it will be published by cron later.
+  elseif (is_numeric($node->publish_on) && $node->publish_on > 0) {
     $node->status = 0;
     $date_format = variable_get('scheduler_date_format', SCHEDULER_DATE_FORMAT);
     drupal_set_message(t('This post is unpublished and will be published @publish_time.', array('@publish_time' => format_date($node->publish_on, 'custom', $date_format))), 'status', FALSE);
@@ -709,6 +735,7 @@ function scheduler_node_type_delete($inf
   $variables[] = "scheduler_publish_touch_" . $info->type;
   $variables[] = "scheduler_publish_required_" . $info->type;
   $variables[] = "scheduler_publish_revision_" . $info->type;
+  $variables[] = "scheduler_publish_past_date_" . $info->type;
   $variables[] = "scheduler_unpublish_enable_" . $info->type;
   $variables[] = "scheduler_unpublish_required_" . $info->type;
   $variables[] = "scheduler_unpublish_revision_" . $info->type;
--- scheduler.test	2013-07-27 18:42:28.000000000 +0100
+++ scheduler.test	2013-09-09 21:36:19.000000000 +0100
@@ -63,4 +63,52 @@ class SchedulerTestCase extends DrupalWe
       $this->assertNoText($body, t('Node is unpublished'));
     }
   }
+
+  /**
+   * Test the different options for past publication dates.
+   */
+  public function testSchedulerPastDates() {
+    // Log in.
+    $this->drupalLogin($this->web_user);
+
+    // Create an unpublished page node.
+    $node = $this->drupalCreateNode(array('type' => 'page', 'status' => FALSE));
+
+    // Test the default behavior: an error message should be shown when the user
+    // enters a publication date that is in the past.
+    $edit = array(
+      'title' => $this->randomName(),
+      'publish_on' => format_date(strtotime('-1 day'), 'custom', 'Y-m-d H:i:s'),
+    );
+    $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
+    $this->assertRaw(t("The 'publish on' date must be in the future"), 'An error message is shown when the publication date is in the past and the "error" behavior is chosen.');
+
+    // Test the 'publish' behavior: the node should be published immediately.
+    variable_set('scheduler_publish_past_date_page', 'publish');
+    $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
+    $this->assertNoRaw(t("The 'publish on' date must be in the future"), 'No error message is shown when the publication date is in the past and the "publish" behavior is chosen.');
+    $this->assertRaw(t('@type %title has been updated.', array('@type' => t('Basic page'), '%title' => check_plain($edit['title']))), 'The node is saved successfully when the publication date is in the past and the "publish" behavior is chosen.');
+
+    // Reload the changed node and check that it is published.
+    $node = node_load($node->nid, NULL, TRUE);
+    $this->assertTrue($node->status, 'The node has been published immediately when the publication date is in the past and the "publish" behavior is chosen.');
+
+    // Test the 'schedule' behavior: the node should be unpublished and become
+    // published on the next cron run.
+    variable_set('scheduler_publish_past_date_page', 'schedule');
+    $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
+    $this->assertNoRaw(t("The 'publish on' date must be in the future"), 'No error message is shown when the publication date is in the past and the "schedule" behavior is chosen.');
+    $this->assertRaw(t('@type %title has been updated.', array('@type' => t('Basic page'), '%title' => check_plain($edit['title']))), 'The node is saved successfully when the publication date is in the past and the "schedule" behavior is chosen.');
+    $this->assertRaw(t('This post is unpublished and will be published @publish_time.', array('@publish_time' => $edit['publish_on'])), 'The node is scheduled to be published when the publication date is in the past and the "schedule" behavior is chosen.');
+
+    // Reload the node and check that it is unpublished but scheduled correctly.
+    $node = node_load($node->nid, NULL, TRUE);
+    $this->assertFalse($node->status, 'The node has been unpublished when the publication date is in the past and the "schedule" behavior is chosen.');
+    $this->assertEqual(format_date($node->publish_on, 'custom', 'Y-m-d H:i:s'), $edit['publish_on'], 'The node is scheduled for the required date');
+
+    // Simulate a cron run and check that the node is published.
+    scheduler_cron();
+    $node = node_load($node->nid, NULL, TRUE);
+    $this->assertTrue($node->status, 'The node with publication date in the past and the "schedule" behavior has now been published by cron.');
+  }
 }