How long does it take for a deleted domain to actually be deleted?

I deleted a domain a few days ago but just received an email from Homestead [hostmaster@hs-support.homestead-inc.com via opensrs.org] with the title 'WHOIS Data Confirmation...'.

Dear Customer,

ICANN, the organization responsible for the stability of the Internet, requires that each domain name registrant be given the opportunity to correct any inaccurate contact data (WHOIS data) associated with a domain name registration. Our records for your domain are as follows:

The info for this domain is still tied to me according to the email but the site itself is gone. Is there something I'm missing? The registration expiration date is confusing as it makes it look like it will be in my name until March 30, 2018... ??

Updated Date: 2017-11-25T18:57:58Z
Creation Date: 2011-03-30T16:56:07Z
Registrar Registration Expiration Date: 2018-03-30T16:56:07Z
Reseller: Homestead Technologies