gistfile1.txt

//Setup
DateTime localDateTime = new DateTime(2014,10,30,9,6,30,DateTimeKind.Local); 
string timeZoneDescription = "Eastern Standard Time";

//Execution
TimeZoneInfo localizedTimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById(timeZoneDescription);
var universalTime = TimeZoneInfo.ConvertTimeToUtc(localDateTime, localizedTimeZoneInfo); //This throws an exception, see below!
return universalTime;

/* 
Throws exception: 
{"The conversion could not be completed because the supplied DateTime did not have the Kind property set correctly.  For example, when the Kind property is DateTimeKind.Local, the source time zone must be TimeZoneInfo.Local.\r\nParameter name: sourceTimeZone"} 
*/