"Under the Easter Act 1928, the Easter weekend would be that of the second Saturday in April. It's never been brought into force. The British government, alas, does not get to unilaterally change the date of worldwide moveable feast."
This week's New World column concerns Easter.
https://www.thenewworld.co.uk/jonn-elledge-nerds-eye-view-11-things-you-need-to-know-about-easter/
Interestingly, that is, however, a valid description of what the Calendar (New Style) Act of 1750 did for calculating the date of #Easter, where the British government specified the lookup tables that are used in England and "any other of the dominions or countries subject or belonging to the crown of Great Britain".
Even more interesting is the 1999 attempt to bring the 1928 Act into force, failing in the face of the argument that it solves a non-problem, those same tables from 1750 providing commercial predictability (the major argument for change) until the year 2199.
Jonn Elledge
JdeBP