public boolean hasEndTime() {
      return ((bitField0_ & 0x00000002) != 0);
    }
<pre>
Time offset relative to the beginning of the audio,
and corresponding to the end of the spoken word.
This field is only set if `enable_word_time_offsets=true` and only
in the top hypothesis.
This is an experimental feature and the accuracy of the time offset can
vary.
</pre>

<code>.google.protobuf.Duration end_time = 2;</code>

@return Whether the endTime field is set.
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/WordInfo.java