This is very subjective question. We can turn around a "standard" web site in under a month. What is a "standard" web site?

A standard web site (for us) is composed of the following:

Home Page
Directions Page (custom directions and google interactive map)
Contact Form (standard contact form with emailed and databases results)
News Module (news scroller/fader, news list, and news details)
Calendar
FAQ Page
PLUS -- An unlimited number of custom pages that you can control ALL content on.

All standard meta data management tools for you to take control of your SEO efforts.

You can manage ALL page content throughout the entire site.

Even on our larger sites, we can produce extremely complex web sites usually in under 3 months time.