Programmatically Changing The Culture For A Multi Form Application On Startup?

Is there some way of programtically changing the culture for a multi form application on startup so that the application will interpret date formats correctly. For example if the aplication runs on a machine with a en-US culture it would be able to take a date from a database in the MM/dd/yyyy format and convert it to a date object and when the same application runs on a en-GB machine it can take that same MM/dd/yyyy date and convert it into a date object without getting a date format exception.