[#BloombergLP-bdlt-Calendar-numNonBusinessDays] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Calendar.adoc[Calendar]::numNonBusinessDays :relfileprefix: ../../../ :mrdocs: Return the number of days in the valid range of this calendar that are _not_ considered business days ‐‐ i.e., are either holidays, weekend days, or both. Note that `numNonBusinessDays() == length() ‐ numBusinessDays()`. == Synopsis Declared in `<bdlt_calendar.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- int numNonBusinessDays() const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#