[#interfaces-BlockInfo-chain_time_max]
= xref:interfaces.adoc[interfaces]::xref:interfaces/BlockInfo.adoc[BlockInfo]::chain&lowbar;time&lowbar;max
:relfileprefix: ../../
:mrdocs:

Maximum block time in the chain up to and including this block&period;

== Synopsis

Declared in `&lt;kernel&sol;chain&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unsigned int chain&lowbar;time&lowbar;max = &lcub;0&rcub;;
----

== Description

A timestamp that can only move forward&period;


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