Convert client time to utc time to save into sql
<p>How could I go about having a client in various time zones select a date and time in their web browser and save it as utc time in my sql database?  This date is a date in the future, so whether or not the date is in daylight savings time could change so I'll need to account for that.</p>

<p>The site is a asp.net c# site.  </p>
