DateTimes using fractional milliseconds are corrupted when they are unmarshalled.

Steps to reproduce:
1. Setup a Flex application to use a .NET webservice (or any webservice which uses fractional seconds).
2. Make a request to a web method which will return a DateTime object.
3. Using the resultformat="object" attribute of the webservice you should get a date time object back in the client.

Example Return String: 2008-11-11T09:28:26.303568-08:00

Actual Results:
When this string is unmarshalled, it is incorrect. The milliseconds in our example, '303568' are being appended using date.setUTCHours(hours, minutes, seconds, millis), which moves the time forward by over 5 minutes.

Expected Results:
The time should be accurately unmarhsalled.

Workaround (if any):
In the .NET Webservice, omit the milliseconds from the DateTime object before sending the response.