[#BloombergLP-bdlt-Timetable-transitionCodeInEffect-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Timetable.adoc[Timetable]::transitionCodeInEffect
:relfileprefix: ../../../
:mrdocs:

Return the transition code associated with the latest transition that occurs on or before the specified `date` and `time` in this timetable. If this timetable has no such transition, return `initialTransitionCode()`. The behavior is undefined unless `24 > time.hour()` and `date` is within the valid range of this timetable.

== Synopsis

Declared in `<bdlt_timetable.h>`

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


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