public Builder setJobStartTime(com.google.protobuf.Timestamp.Builder builderForValue) {
      if (jobStartTimeBuilder_ == null) {
        jobStartTime_ = builderForValue.build();
      } else {
        jobStartTimeBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00200000;
      onChanged();
      return this;
    }
<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>
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/Job.java