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Subject: [OASIS Issue Tracker] Commented: (ODATA-11) date/time values without explicit time zones need further investigation
[ http://tools.oasis-open.org/issues/browse/ODATA-11?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31143#action_31143 ]
Ralf Handl commented on ODATA-11:
---------------------------------
I share the point of view expressed in RFC3339 Section 4.4 Unqualified Local Time (http://www.ietf.org/rfc/rfc3339.txt):
Since interpretation of an unqualified local time
zone will fail in approximately 23/24 of the globe, the
interoperability problems of unqualified local time are deemed
unacceptable for the Internet.
Being an internet protocol, I believe that OData should not have a zoneless DateTime type at all.
Especially with EIS data the publishing system must translate its internal datetime format into a well-defined datetime with offset on the way out, and translate timezoned data into its internal datetime format on the way in.
The HTML5 definitions cited above refer back ISO8601 which recommends including the timezone. I suggest we follow this recommendation even if it has been ignored by "intermediate layers".
> date/time values without explicit time zones need further investigation
> -----------------------------------------------------------------------
>
> Key: ODATA-11
> URL: http://tools.oasis-open.org/issues/browse/ODATA-11
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Improvement
> Components: OData CSDL v1.0
> Reporter: Andrew Eisenberg
> Assignee: Michael Pizzo
>
> The reflection in OData of date/time values without explicit time zones needs further investigation.
> One way in which this issue manifests itself is in the comparison of a datetime value with a timezone to a datetime value without a timezone.
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