public void setStartTime(java.util.Date startTime) {
        this.startTime = startTime;
    }
<p>
Optionally specifies, in UTC, the start of the time range to look up public keys for CloudTrail digest files. If
not specified, the current time is used, and the current public key is returned.
</p>

@param startTime
       Optionally specifies, in UTC, the start of the time range to look up public keys for CloudTrail digest
       files. If not specified, the current time is used, and the current public key is returned.
aws-java-sdk-cloudtrail/src/main/java/com/amazonaws/services/cloudtrail/model/ListPublicKeysRequest.java