I read articles from net, the owner has 35-40 days to renew their domain name after expiration day. Then the domain will enter another 35-40 days of redemption period before it is realy drop and available to public.
I follow some domain, for example eritrea.com
Domain Name: ERITREA.COM
Registrar: COMPANA, LLC
Whois Server: whois.budgetnames.com
Referral URL:
http://www.budgetnames.com
Name Server: NS1.COMPANA.COM
Name Server: NS2.COMPANA.COM
Status: clientDeleteProhibited
Status: clientTransferProhibited
Status: clientUpdateProhibited
Updated Date: 22-jan-2007 <----
Creation Date: 21-jan-2003
Expiration Date: 21-jan-2008
From
archive-jan-21-2007, it was detected to be expired at jan-21-2007.
Some domain has similar pattern. I think it is rather weird if the owner wait for one day after expiration date to renew his/her domain.
If it is me, i would not wait until the expiration date to renew my domain. Maybe the site signals those domain name has already ignored by their owner.