That is the third reference to going to bed, I had 2 PM's saying they hope they dont get outbid cause they're going to sleep..
Auction extended until 8:40AM+. So any snipers looking to get lucky between 12:40AM - 8:40AM sorry! This will make most people happy.
The + means the 4 hour increase still goes on, but the earliest it would end is 8:40AM (if a bid happens at 4:41AM, then its extended until 8:41AM and so on).