code: def place(slot_name, dttime):
  	
  	dttime = datetime.strptime(dttime, '%Y-%m-%d %H:%M:%S')
  	dttime = dttime.replace(second=0, microsecond=0)
  	try:
  		area.context['timers'][dttime].add(slot_name)
  	except KeyError:
  		area.context['timers'][dttime] = {slot_name}
  	area.publish({'status': 'placed'}, slot=slot_name)
docs: Set a timer to be published at the specified minute.