New domains are registered within hours (normal business hours) after receiving your application. For your domain and account to be activated, however, it normally requires 24-48 hours for the DNS propagation. In this process, DNS databases require sufficient time to synchronize and update in order to contain your domain record.
Yes. You can register a domain name with us and a "Under Construction" page will be provided by default so that you can put your website when you are ready to do so.