The Annual Festivals of God 

2019
Passover: April 19 (Observed evening before)
Feast of Unleavened Bread: April 20-26
Pentecost: June 9
Feast of Trumpets: September 30
Day of Atonement: October 9
Feast of Tabernacles: October 14-20
The Eighth Day: October 21

2020
Passover: April 8 (Observed evening before)
Feast of Unleavened Bread: April 9-15
Pentecost: May 31
Feast of Trumpets: September 19
Day of Atonement: September 28
Feast of Tabernacles: October 3-9
The Eighth Day: October 10

2021
Passover: March 27 (Observed evening before)
Feast of Unleavened Bread: March 28 - April 3
Pentecost: May 16
Feast of Trumpets: September 7
Day of Atonement: September 16
Feast of Tabernacles: September 21-27
The Eighth Day: September 28

2022
Passover: April 15 (Observed evening before)
Feast of Unleavened Bread: April 16-22
Pentecost: June 5
Feast of Trumpets: September 26
Day of Atonement: October 5
Feast of Tabernacles: October 10-16
The Eighth Day: October 17

2023
Passover: April 5 (Observed evening before)
Feast of Unleavened Bread: April 6-12
Pentecost: May 28
Feast of Trumpets: September 16
Day of Atonement: September 25
Feast of Tabernacles: September 30 - October 6
The Eighth Day: October 7

In biblical reckoning, days begin in the evening (Genesis 1:5 Genesis 1:5And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.
American King James Version×), when the sun goes down (Joshua 8:29 Joshua 8:29And the king of Ai he hanged on a tree until eventide: and as soon as the sun was down, Joshua commanded that they should take his carcass down from the tree, and cast it at the entering of the gate of the city, and raise thereon a great heap of stones, that remains to this day.
American King James Version×; 2 Chronicles 18:34 2 Chronicles 18:34And the battle increased that day: however, the king of Israel stayed himself up in his chariot against the Syrians until the even: and about the time of the sun going down he died.
American King James Version×; Mark 1:32 Mark 1:32And at even, when the sun did set, they brought to him all that were diseased, and them that were possessed with devils.
American King James Version×), and are counted "from evening to evening" (Leviticus 23:32 Leviticus 23:32It shall be to you a sabbath of rest, and you shall afflict your souls: in the ninth day of the month at even, from even to even, shall you celebrate your sabbath.
American King James Version×). Thus, all God's festivals begin the evening just before the dates listed in this table. For example, in 2017 Passover is observed on the evening of April 9, after sundown, and the Feast of Unleavened Bread begins the following evening, April 10. The festivals end at sunset on the dates given.