I am building a multilingual web app. The client requires the site for HK to be displayed in English. Unfortunately, "en-HK" is not a valid culture in asp.net, so I tried to get around it using "zh-hk". However, this caused the date time strings (with format of dd-MMM-yyyy) to be displayed in Chinese. 

Is there any way to display the language in english but localise it to Hk?