public boolean hasEndTime() {
      return ((bitField0_ & 0x00000010) != 0);
    }
<pre>
End time of the span in nanoseconds from the UNIX epoch.
</pre>

<code>.google.protobuf.Timestamp end_time = 5;</code>

@return Whether the endTime field is set.
java-trace/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpan.java