public MotionImageInserter withStartTime(String startTime) {
        setStartTime(startTime);
        return this;
    }
Specify when the motion overlay begins. Use timecode format (HH:MM:SS:FF or HH:MM:SS;FF). Make sure that the
timecode you provide here takes into account how you have set up your timecode configuration under both job
settings and input settings. The simplest way to do that is to set both to start at 0. If you need to set up your
job to follow timecodes embedded in your source that don't start at zero, make sure that you specify a start time
that is after the first embedded timecode. For more information, see
https://docs.aws.amazon.com/mediaconvert/latest/ug/setting-up-timecode.html

@param startTime
       Specify when the motion overlay begins. Use timecode format (HH:MM:SS:FF or HH:MM:SS;FF). Make sure that
       the timecode you provide here takes into account how you have set up your timecode configuration under
       both job settings and input settings. The simplest way to do that is to set both to start at 0. If you
       need to set up your job to follow timecodes embedded in your source that don't start at zero, make sure
       that you specify a start time that is after the first embedded timecode. For more information, see
       https://docs.aws.amazon.com/mediaconvert/latest/ug/setting-up-timecode.html
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/MotionImageInserter.java