There are four types of elections in Wales: elections to the House of Commons of the United Kingdom, elections to the devolved Senedd (Welsh Parliament; Welsh: Senedd Cymru), local elections to the 22 principal areas, and the Police and Crime Commissioner elections, in addition to by-elections for each aforementioned election. Elections are held on Election Day, which is conventionally a Thursday. Since the passing of the Fixed-term Parliaments Act 2011 for UK general elections, all four types of elections are held after fixed periods, though early elections to the UK parliament can occur in certain situations, with Senedd elections being postponed to avoid elections to the UK parliament and Senedd coinciding with each other.