code: public B timerWithDate(String timerDate) {
      TimeDate timeDate = createInstance(TimeDate.class);
      timeDate.setTextContent(timerDate);
  
      TimerEventDefinition timerEventDefinition = createInstance(TimerEventDefinition.class);
      timerEventDefinition.setTimeDate(timeDate);
  
      element.getEventDefinitions().add(timerEventDefinition);
  
      return myself;
    }
docs: Sets an event definition for the timer with a time date.
  
  @param timerDate the time date of the timer
  @return the builder object