[#BloombergLP-bdlt-PosixDateImpUtil-ymdToSerial]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/PosixDateImpUtil.adoc[PosixDateImpUtil]::ymdToSerial
:relfileprefix: ../../../
:mrdocs:

Return the serial date representation of the date value indicated by the specified `year`, `month`, and `day`. The behavior is undefined unless `true == isValidYearMonthDay(year, month, day)`.

== Synopsis

Declared in `<bdlt_posixdateimputil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
ymdToSerial(
    int year,
    int month,
    int day);
----


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