存储常用值的最佳方法。

In my Webforms 3.5 application, I have a GridView of users that displays the last time they logged in. This value is stored in the Users table in UTC. When an Administrator views the grid, I want them to view it the time zone the Administrator has selected in their preferences (also stored in the Users table).In my Webforms 3.5 application, I have a GridVi