[#BloombergLP-bslmt-Turnstile-lagTime]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/Turnstile.adoc[Turnstile]::lagTime
:relfileprefix: ../../../
:mrdocs:

Return the positive number of microseconds difference between the the current time and the next turn, indicating that the turnstile is lagging behind the configured rate. Otherwise, return 0.

== Synopsis

Declared in `<bslmt_turnstile.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64]
lagTime() const;
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