Revamping the site

So, my previous hosting company sucked and the site went down many times and I decided to switch.

How fast can I switch?

I needed to take into account that domain name had to be transferred, which was a pain as the previous hoster was only checking his support mails once a week. But once this was done, then everything was ok. I could use the new hosting company, upload concrete 5, add a theme and modify the existing template to add minimal content.

It was more than 1 hour to be honest but definitely less than 3 ... once the DNS transfer had been done.