No idea if possible in Views, but I created a custom block to achieve this.
function relative_posts_block_info() {
$blocks['relative_posts'] = array(
'info' => t('Relative Posts'),
);
return $blocks;
}
function relative_posts_block_view($delta = '') {
switch ($delta) {
case 'relative_posts':
$block['subject'] = t('Block Title Goes Here');
$node = menu_get_object();
$formatted_date = date('m/d/Y H:i:s', $node->created);
$start_date = strtotime('+2 weeks', strtotime($formatted_date));
$end_date = strtotime('-2 weeks', strtotime($formatted_date));
$query = new EntityFieldQuery();
$entities = $query->entityCondition('entity_type', 'node')
->entityCondition('bundle', 'story')
->fieldCondition('taxonomy_vocabulary_1', 'tid', $node->taxonomy_vocabulary_1['und'][0]['tid'])
->propertyCondition('created', array($end_date, $start_date), 'BETWEEN')
->propertyOrderBy("created", "DESC")
->propertyCondition('status', 1)
->range(0, 25)
->execute();
$block['content'] = '<ul>';
foreach($entities['node'] as $obj) {
$node = node_load($obj->nid);
$block['content'] .= '<li>' . l($node->title, "node/" . $node->nid) . '</li>';
}
$block['content'] .= '</ul>';
break;
}
return $block;
}