>>Do you mean that the web service requires a date passed in the above format. If the last part is intended to convey the offset then how come it's 17:05 - I'm not aware of a timezone that is different by a factor of minutes....
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>>Would the DateTimeOffset structure (rather than DateTime) work ?
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>It is based on the the time zone of the user, the time zone of the server, the offset, the dailight saving time and the actual time. So, this is why I have to handle it on my own. I did it. I just wasn't sure at first about calculating the offset. This is done now.
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OK. Still don't understand what 2011-08-23T17:05:04.859-17:05 actually represents tho. -17:00 I could understand, but -17:05 ?