A few years ago, our then parish priest instituted a new custom here in our parish of having a Holy Hour followed by Mass at midnight on New Year’s Eve. This proved to be a popular devotion with many opting to see the new year in with prayer and the Eucharist rather than with a drunken debauch.
Our new parish priest has stopped this saying that midnight mass on New Year’s Eve is not liturgical. Our assistant priests were able to get his approval for a Holy Hour of Adoration of the Blessed Sacrament from 11pm to 12 pm so we didn’t entirely miss out.
My question is: what are the norms/regulations concerning vigil masses? Why is a mass at midnight not considered a vigil mass?