C# UTC to Users Local Time

I have a site where users can make posts. The users can be from all over the globe so when they post, I am storing the posted date as DateTime.UtcNow. I am using the JQuery time ago plug in to show the posted dat similar to stack overflow (1 min ago etc…) But I am not sure how to convert to date I have stored in the system to the users local time? Here is what I am using: