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.
Since the enactment of the Fixed-term Parliaments Act 2011 for UK general elections, all four types of elections are held after fixed periods; however, early elections to the UK parliament can occur under certain circumstances, with Senedd elections being postponed to avoid simultaneous elections to the UK parliament and Senedd.