@java.lang.Override
  public boolean hasJobStartTime() {
    return ((bitField0_ & 0x00000004) != 0);
  }
<pre>
The start timestamp of the job in UTC time zone. Typically this field
is used for contracting engagements. Invalid timestamps are ignored.
</pre>

<code>.google.protobuf.Timestamp job_start_time = 22;</code>

@return Whether the jobStartTime field is set.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/Job.java