Here is some information that I pulled from a thread that I created in 2020:
Bikkurim at the center of Hag Matzot
Let's look at Pesach and Hag Matzot first.
(CLV) Lv 23:5
In the first month ion the fourteenth day of the month between the evening hours is the passover to Yahweh.
Yahshua died on the torture stake on Pesach
(CLV) Lv 23:6
And on the fifteenth day of this month is the festival of unleavened bread to Yahweh. Seven days shall you eat unleavened bread.
The fifteenth day is when Yahshua was in the grave. for the first night.
(CLV) Lv 23:8
And you will bring near a fire offering to Yahweh seven days. On the seventh day is a holy meeting, when you shall do not occupational work at all.
(CLV) Ex 12:18
In the first month on the
fourteenth day of the month, in the evening, you shall eat unleavened bread until
day twenty one of the month, in the evening.
Mag Matzot begins at sundown on the transition from the 14th to the 15th.
14 day (Yahshua in the grave) 15 night/day 16 night/day 17 night/day 18, 19, 20, 21 = 7 days
(CLV) Lv 23:7
On the first day you shall come to ›have a holy meeting, when you shall
do no occupational work at all.
The first day, the 15th of Hag Matzot is a Shabbat.
14 day (Yahshua in the grave) 15 (Shabbat) night/day 16 night/day 17 night/day 18, 19, 20, 21 = 7 days
(CLV) Lv 23:10
Speak to the sons of Israel, and you will say to them, When you come into the land which I am giving to you and reap its harvest, you will bring a sheaf of the firstfruit of your harvest to the priest.
Bikkurim
(CLV) Lv 23:11
He will wave »the sheaf before Yahweh for acceptance on your behalf.
From the morrow of the sabbath the priest shall wave it.
Bikkurim begins on the evening after the first Shabbat after the 15th
(CLV) Jn 20:1
Now,
on one of the sabbaths, Miriam Magdalene is coming to the tomb in the morning, there
being still darkness, and is observing the stone taken away from the door of the tomb.
Yahshua rose during the night, on the first Shabbat after the 15th.
14 day (Yahshua in the grave) 15 (Shabbat) night/day 16 night/day 17 (Shabbat) night/Yahshua rose/day 18, (Bikkurim) 19, 20, 21 (Shabbat)= 7 days
15 (Shabbat) night/day 16 night/day 17 (Shabbat) night/Yahshua rose/day
18, (Bikkurim)
19, 20, 21 (Shabbat)
It would put Yahshua in the grave before sundown on Wednesday.