Greetings to all.
I am new to this, so please excuse me if the question appears odd, or if the answer to it is obvious.
I noticed that for Holy Week, the 12 Gospels of Our Lord’s Passion are read on Holy Thursday instead of Good Friday, and the narrative of Our Lord’s Resurrection is read on Holy Saturday instead of Easter Sunday. Is there a reason for this one-day offset (if it is, in fact, considered an offset)?
It isn't truly a one-day offset since liturgically a day is "sundown to sundown." It's similar to Jews, if you recall that their Sabbath observances start Friday night and they're free to do whatever come Saturday night. As such, Holy Saturday's night is actually (liturgically) Easter Sunday. I believe Vespers brings a liturgical day to its end, but I may be wrong.