[#BloombergLP-bdlt-EpochUtil-TimeT64]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/EpochUtil.adoc[EpochUtil]::TimeT64
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:mrdocs:

`TimeT64` is an alias for a 64‐bit integral type representing seconds from the epoch in UTC. Note that, in contrast with `bsl::time_t`, this type can be used in conversions to and from `Datetime` values that are less than the epoch (corresponding to negative `TimeT64` values).

== Synopsis

Declared in `<bdlt_epochutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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typedef xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] TimeT64;
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