In Lochac, when the lights are turned on in a hall, it is time to clean up. It is polite to quickly pack all of your items away so that tables can be packed away, and then help with the pack up for a few minutes. If everyone does (and most people do) the event can be packed up quite quickly. The same applies to outdoor events (without the lights turning on). If you often need to leave events early, you may wish to turn up early and offer help with setting up instead.