This seems to be interesting:<p><pre><code> Use UTC times formatted in ISO8601
Accept and return times in UTC only. Render times in ISO8601 format, e.g.:
"finished_at": "2012-01-01T12:00:00Z"
</code></pre>
So what if the time zone is important? E.g. the time a user purchased a product. The UTC time is obviously consistent throughout the system but presented without a time zone might not make an awful lot of sense to a user, especially if the time zone is something plus or minus 10 hours.<p>Wouldn't an RFC 2822 formatted date make not more sense; "Thu, 21 Dec 2000 16:01:07 +0200". You still have your UTC but you are now capable to represent the time to a user within a context that makes sense.