<DATE> ist used to capture a time stamp. It must match to one of the following syntaxes:
<YYYY>-<MM>-<DD>[T<hh>:<mm>:<ss>]
<YYYY>.<MM>.<DD>[T<hh>:<mm>:<ss>]
<YYYY>/<MM>/<DD>[T<hh>:<mm>:<ss>]
The last pattern is the most preferred one, since it reflects a common use in US.
<DATE>2001-03-20T09:00:00</DATE>

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