[#BloombergLP-bdlt-DatetimeInterval-addHours]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval]::addHours
:relfileprefix: ../../../
:mrdocs:

Add to this time interval the specified number of `hours`, and return a reference providing modifiable access to this object. The behavior is undefined unless the resulting time interval value is valid (i.e., the days field must not overflow a 32‐bit integer).

== Synopsis

Declared in `<bdlt_datetimeinterval.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval]&
addHours(xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] hours);
----


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