according to various old posts , domains usually drop around 14:00 EST
you can monitor the current status of a domain (.coms , .nets) at the Verisign Whois
I think it updates when you send a query ... under the expiration date it says ">>> Last update of whois database: Day, DD MMM YYYY HH:MM:SS UTC <<<" ... with the time of your query as the time/date ... try it with a domain to check it (then try the same domain after a couple of minutes to see the new time/date) ... I suppose if the status changes it would reflect it there immediately since the updates are so current
My bad.... I think it's the 6th day as well. For some reason I was thinking there were only lists for 5 days not 6. I always just watch the Pending Delete lists