public Builder clearTargetDatetime() {
      bitField0_ = (bitField0_ & ~0x00000040);
      targetDatetime_ = null;
      if (targetDatetimeBuilder_ != null) {
        targetDatetimeBuilder_.dispose();
        targetDatetimeBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
The date for which report is generated. The time part of target_datetime
will be zero till we support multiple reports per day.
</pre>

<code>.google.type.DateTime target_datetime = 6;</code>
java-storageinsights/proto-google-cloud-storageinsights-v1/src/main/java/com/google/cloud/storageinsights/v1/ReportDetail.java