public Builder clearStartDate() {
      bitField0_ = (bitField0_ & ~0x00000002);
      startDate_ = null;
      if (startDateBuilder_ != null) {
        startDateBuilder_.dispose();
        startDateBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
The date from which report generation should start.
UTC time zone.
</pre>

<code>.google.type.Date start_date = 2;</code>
java-storageinsights/proto-google-cloud-storageinsights-v1/src/main/java/com/google/cloud/storageinsights/v1/FrequencyOptions.java