public Builder clearTimeOffset() {
      bitField0_ = (bitField0_ & ~0x00000001);
      timeOffset_ = null;
      if (timeOffsetBuilder_ != null) {
        timeOffsetBuilder_.dispose();
        timeOffsetBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
The time when the following tracking events occurs. The time is in
seconds relative to the start of the VOD asset.
</pre>

<code>.google.protobuf.Duration time_offset = 1;</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/ProgressEvent.java