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RSS FAQs - Atom Syndiation Format RFC4287 Reference Document

By: M. Nottingham, Ed. & R. Sayre, Ed.

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   Such date values happen to be compatible with the following
   specifications: [ISO.8601.1988], [W3C.NOTE-datetime-19980827], and
   [W3C.REC-xmlschema-2-20041028].

   Example Date constructs:

   <updated>2003-12-13T18:30:02Z</updated>
   <updated>2003-12-13T18:30:02.25Z</updated>
   <updated>2003-12-13T18:30:02+01:00</updated>
   <updated>2003-12-13T18:30:02.25+01:00</updated>

   Date values SHOULD be as accurate as possible.  For example, it would
   be generally inappropriate for a publishing system to apply the same
   timestamp to several entries that were published during the course of
   a single day.

4.  Atom Element Definitions

4.1.  Container Elements

4.1.1.  The "atom:feed" Element

   The "atom:feed" element is the document (i.e., top-level) element of
   an Atom Feed Document, acting as a container for metadata and data
   associated with the feed.  Its element children consist of metadata
   elements followed by zero or more atom:entry child elements.

   atomFeed =
      element atom:feed {
         atomCommonAttributes,
         (atomAuthor*
          & atomCategory*
          & atomContributor*
          & atomGenerator?
          & atomIcon?
          & atomId
          & atomLink*
          & atomLogo?
          & atomRights?
          & atomSubtitle?
          & atomTitle
          & atomUpdated
          & extensionElement*),
         atomEntry*
      }

   This specification assigns no significance to the order of atom:entry
   elements within the feed.

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