[#BloombergLP-bdlt-DatetimeFormatter-formatIso8601]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/DatetimeFormatter.adoc[DatetimeFormatter]::formatIso8601
:relfileprefix: ../../../
:mrdocs:

Format the specified `value` to the specified `out` using the Iso8601 format and return `out`&period;

== Synopsis

Declared in `&lt;bdlt&lowbar;datetimeformatter&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;ITERATOR&gt;
t&lowbar;ITERATOR
formatIso8601(
    t&lowbar;ITERATOR out,
    xref:BloombergLP/bdlt/DatetimeFormatter.adoc[FormatCache] const& value) const;
----


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