It's not just you: Flickr will be down six hours on Thursday[ Wed, 24 Jul 2013 22:01:03 GMT ]Yahoo photo-sharing site Flickr is alerting users that the site plans to be out of commission for about six hours Wednesday, as it undertakes some "planned maintenance."The site will be unavailable from 4 p.m. PT / 7 p.m. ET Thursday until 10 p.m. PT Thursday and 1 a.m. ET Friday.