public com.google.protobuf.Duration getTimeOffset() {
      if (timeOffsetBuilder_ == null) {
        return timeOffset_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : timeOffset_;
      } else {
        return timeOffsetBuilder_.getMessage();
      }
    }
<pre>
The timestamp of the frame in microseconds.
</pre>

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

@return The timeOffset.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p2beta1/src/main/java/com/google/cloud/videointelligence/v1p2beta1/ObjectTrackingFrame.java