public void setAtBlockchainInstant(BlockchainInstant atBlockchainInstant) {
        this.atBlockchainInstant = atBlockchainInstant;
    }
<p>
The time for when the TokenBalance is requested or the current time if a time is not provided in the request.
</p>
<note>
<p>
This time will only be recorded up to the second.
</p>
</note>

@param atBlockchainInstant
       The time for when the TokenBalance is requested or the current time if a time is not provided in the
       request.</p> <note>
       <p>
       This time will only be recorded up to the second.
       </p>
aws-java-sdk-managedblockchainquery/src/main/java/com/amazonaws/services/managedblockchainquery/model/TokenBalance.java