[#BloombergLP-bdlt-CurrentTime-setCurrentTimeCallback]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/CurrentTime.adoc[CurrentTime]::setCurrentTimeCallback
:relfileprefix: ../../../
:mrdocs:

Set the specified `callback` as the function to be used to retrieve the interval between `EpochUtil::epoch()` and the current date/time, and return the previously set function.

== Synopsis

Declared in `<bdlt_currenttime.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bdlt/CurrentTime/CurrentTimeCallback-02.adoc[CurrentTime::CurrentTimeCallback]
setCurrentTimeCallback(xref:BloombergLP/bdlt/CurrentTime/CurrentTimeCallback-02.adoc[CurrentTimeCallback] callback);
----


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