public Builder clearEndTime() {
        bitField0_ = (bitField0_ & ~0x00000040);
        endTime_ = null;
        if (endTimeBuilder_ != null) {
          endTimeBuilder_.dispose();
          endTimeBuilder_ = null;
        }
        onChanged();
        return this;
      }
<pre>
End time of this transfer execution.
</pre>

<code>.google.protobuf.Timestamp end_time = 5;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java