Based on Matthew 12:40
shalom b'SHEM Yah'shua HaMashiach
NAU Matthew 12:40
I would think He was buried
for just as JONAH WAS THREE DAYS AND THREE
NIGHTS IN THE BELLY OF THE SEA MONSTER,
so will the Son of Man be three days and three nights
in the heart of the earth.
prior to sundown Wednesday.
The Bible only says that He died and was buried three days. It does not say those days were completely 24 hours each, and I think for sake of a hot Middle Eastern sun and decomposing bodies aren’t healthy things to deal with, the Jews would have wanted to prepare the body ASAP.
I personally think Christ died at the tail end of the sixthday, stayed dead on the Sabbath and then was resurrected sometime on the first day.