[#BloombergLP-bdlt-DatetimeInterval-isValid] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval]::isValid :relfileprefix: ../../../ :mrdocs: Return `true` if a time interval object having the value given by the specified `days`, and the optionally specified `hours`, `minutes`, `seconds`, `milliseconds`, and `microseconds` can be represented as a `DatetimeInterval` and `false` otherwise. Unspecified arguments default to 0. The resulting time interval value is valid if the days field does not overflow a 32‐bit integer. Note that the arguments may be supplied using a mixture of positive, negative, and 0 values. == Synopsis Declared in `<bdlt_datetimeinterval.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- static bool isValid( int days, xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] hours = 0, xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] minutes = 0, xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] seconds = 0, xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] milliseconds = 0, xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] microseconds = 0); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#