[#BloombergLP-bdlt-Calendar-isNonBusinessDay]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Calendar.adoc[Calendar]::isNonBusinessDay
:relfileprefix: ../../../
:mrdocs:

Return `true` if the specified `date` is not a business day (i.e., is either a holiday or weekend day) in this calendar, and `false` otherwise. The behavior is undefined unless `date` is within the valid range of this calendar. Note that: ` !isBusinessDay(date) ` returns the same result.

== Synopsis

Declared in `<bdlt_calendar.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isNonBusinessDay(xref:BloombergLP/bdlt/Date.adoc[Date] const& date) const;
----


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