[#BloombergLP-bdlt-Datetime-operator_plus_eq-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Datetime.adoc[Datetime]::operator+=
:relfileprefix: ../../../
:mrdocs:

Addition assignment operators

== Synopses

Declared in `<bdlt_datetime.h>`

Add to this object the value of the specified `rhs` object, and return a reference providing modifiable access to this object. If `24 == hour()` on entry, set the `hour` attribute of this object to 0 before performing the addition. The behavior is undefined unless the resulting value is valid for `Datetime` (see `isValid`).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/Datetime.adoc[Datetime]&
xref:BloombergLP/bdlt/Datetime/operator_plus_eq-02.adoc[operator+=](xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval] const& rhs);
----

[.small]#xref:BloombergLP/bdlt/Datetime/operator_plus_eq-02.adoc[_» more..._]#

Add the specified time interval `rhs` to this datetime.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/Datetime.adoc[Datetime]&
xref:BloombergLP/bdlt/Datetime/operator_plus_eq-0f.adoc[operator+=](xref:BloombergLP/bsls/TimeInterval.adoc[bsls::TimeInterval] const& rhs);
----

[.small]#xref:BloombergLP/bdlt/Datetime/operator_plus_eq-0f.adoc[_» more..._]#


[.small]#Created with https://www.mrdocs.com[MrDocs]#