Just this week foursquare has added even more functionality for owners of businesses. 

 Now, managers and owners of business listings can use the foursquare dashboard (provided they "own" their listing) to add details hours of operation to their listing, providing users who checkin with even more useful information at their finger tips... very nice!

From the foursquare blog... You’ll even see specific times, like happy hour, kitchen hours, or free admission hours at museums.

To do this business owners  can update information via their venue information page. they simply login (or claim ownership first) then click through the dashboard and edit the business hours values. According to the instructions, a bulk utility is coming for managers who maintain multiple venues. See detailed instructions HERE

For venue owners, detailed information for managing your listing can be found on this support page

Note: Like social media in general, businesses are still trying to figure out why social media, why foursquare and how to capitalize on it and leverage the apps and services into $$. From my perspective, business owners, at the very least, need to take over ownership of their information and listings and providing accurate information about their business to the users. Foursquare (and other social apps) offer tools and analytics to business owners and these need to be used. By taking over ownership of your listing the owner can ensure that the information provided to customers is accurate and current, they can offer special offers and time sensitive information, and perhaps most important, they can access important and useful statistics about customers who checkin and even engage with them! Get Started at http://foursquare.com/business/

Other useful Biz owners resources from Foursquare:

• Claiming your venue
• Creating a Special
• Case studies

 See also the Foursquare Forums

Source: Business Hours Now on Foursquare

See Also:

• Simple ArcGIS Map Mashup of Flickr Photos and Foursquare Checkins  
• Foursquare Global Hackathon, Innovation In Social Location
• How To Get More Checkin Rewards and Foursquare Deals On your Business Trip or Vacation
• Own Your Listing! Local Search and Social Location Map Resources To List your Business