Wrong progress result for CN-寒脊山小径 server

https://cn.classic.warcraftlogs.com/guild/id/536507

The time stamp shows that the above link guild has comoleted TAQ even before our server gate opened (2020.08.08 4:16PM (gmt+8) ). How is that possible?I dont know how could the uploader did that but its clearly a fake record,please investigate the situation and hopefully fix it asap,thanks in advance.