A.It usually takes two business days for updates made online at Dinsol.com to be seen elsewhere on the web, including hosting information.
This is standard Internet propagation time.
Additionally, some registrars whois databases are not compatible with others. You may wish to use a central whois lookup, as one registrar may not carry another's info. Your best bet is always to look up a domain at the registrar of record. To find out who the registrar is for a name, go to http://www.internic.net/whois.html.