[Loyalist]

There is a long, long Catholic tradition that the day begins with the preceding evening. Take a look at a breviary.

If anticipated Mass were consistent with that tradition, it would have been practiced long before now.

[sinkspur]

If anticipated Mass were consistent with that tradition, it would have been practiced long before now.

It was. THE EASTER VIGIL!

And where do you get the notion that the Church cannot make changes to worship schedules?

Holy Days of Obligation have been added, and deleted, and combined, and moved to Sundays, throughout history. Laws of fast and abstinence have been changed, and the recitation of the Divine Office, long considered an obligation binding under pain of mortal sin for those in Orders, can be dispensed by a bishop for almost any reason.

[St.Chuck]

If anticipated Mass were consistent with that tradition, it would have been practiced long before now.

I'm just suggesting that the Saturday anticipated mass shouldn't raise much of a ruckus, as there is a precedence for such observances.