search_date_query_alter.module

<?php


/**
 * @file
 * Adds date conditions to node searches.
 */
use Drupal\Core\Database\Query\AlterableInterface;

/**
 * Implements hook_query_TAG_alter().
 *
 * Tags search_$type with $type node_search.
 */
function search_date_query_alter_query_search_node_search_alter(AlterableInterface $query) {
    // Start date Sat, 19 Mar 2016 00:00:00 GMT.
    $query->condition('n.created', 1458345600, '>=');
    // End date Sun, 20 Mar 2016 00:00:00 GMT.
    $query->condition('n.created', 1458432000, '<');
}