The Biblical Calendar

This web site provides studies on the biblical calendar written by Herb Solinsky in PDF format and a holy day schedule for upcomming years.

A concise biblical calendar study is now available that is much shorter than the documents below.


Download the "Concise Biblical Calendar", updated January 9th, 2022.

A study including the biblical basis for the use of the vernal equinox and the moon in the Biblical calendar, and the subsequent historical departure from that original calendar is now avaiable.


Download the "Historical Departure from the Biblical Calendar", updated October 30, 2022."

The following study on the biblical calendar provides well documented information regarding how the calendar originally functioned.


Download the "Treatise on the Biblical Calendar", updated April 3, 2009.

An Abridged Biblical Calendar Study is now available.


Download the "Abridged Biblical Calendar", updated July 4, 2021.

A Study concerning Barley and the Calendar is now available.


Download "Barley and the Calendar", updated June 12, 2022.

A study titled "The Start of a Biblical Day of the Month and the Sabbath Day" is now available.


Download the PDF version of this study, updated April 8, 2014.

A document designed for a a 150 minute seminar on the biblical calendar with emphasis on explaining the biblical and historical reasons for the biblical method before the Temple was destroyed in 70 is now available.


Download the PDF version of this study, updated July 12, 2022.

An Evaluation of Rabbinic Literature and its Trustworthiness for History and the Interpretation of the Torah is now available.


Download the PDF version of this study, updated October 28, 2022.

When was the ancient vernal equinox and how does it related to the Babylonian calendar?


Download the PDF version of this study, updated January 9, 2022.

A document refuting ideas that the moon is involved in determining the weekly Sabbath is now available.


Download the PDF version of this study, updated December 17, 2017.

When does the biblical year begin?


Download the PDF version of this study, updated July 27, 2018.

A document for a lengthy two day seminar which includes discussion of the zodiac is now available.


Download the PDF version of this study, updated June 27, 2021.

A document discussing the calendars of the dead sea scrolls is now available.


Download the PDF version of this study, updated October 30, 2022.

For calendar questions, please contact Herb Solinsky at

Genesis 1:14-18             Psalm 104:19


Holy Day Schedule for 2020-2030


Year First day of First of Month Feast of Unleavened Breaed Pentecost Feast of Trumpets Day of Atonement Feast of Tabernacles Eighth Day
2020 Thursday, March 26th Thursday, April 9th - Wednesday, April 15th Sunday, May 31 Saturday, September 19th Monday, September 28th Saturday, October 3rd - Friday, October 9th Saturday, October 10th
2021 Wednesday, April 14th Wednesday, April 28th - Tuesday, May 4th Sunday, June 20th Friday, October 8th Sunday, October 17th Friday, October 22nd - Thursday, October 28th Friday, Otober 29th
2022 Monday, April 4th* Monday, April 18th - Sunday, April 24rd Sunday, June 12th Wednesday, September 28th Friday, October 7th Wednesday, October 12th - Tuesday, October 18th Wednesday, October 19th
2023 Thursday, March 24* Friday, April 7th - Thursday, April 13th Sunday, May 28th Sunday, September 17th Tuesday, September 26th Sunday, October 1st - Saturday, October 7th Sunday, October 8th
2024 Wednesday, April 10th Wednesday, April 24th - Tuesday, April 30th Sunday, June 16th Saturday, October 5th* Monday, October 14th Saturday, October 19th - Friday, October 25th Saturday, October 26th
2025 Monday, March 31st Monday, April 14th - Sunday, April 20th Sunday, June 8th Wednesday, September 24th* Friday, October 3rd Wednesday, October 8th - Tuesday, October 14th Wednesday, October 15th
2026 Saturday, March 21st Saturday, April 4th - Friday, April 10th Sunday, May 24th Sunday, September 13th Tuesday, September 22nd Sunday, September 27th - Saturday, October 3rd Sunday, October 4th
2027 Friday, April 9th Friday, April 23rd - Thursday, April 29th Sunday, June 13th Sunday, Otober 3rd Tuesday, October 12th Sunday, October 17th - Saturday, October 23rd Sunday, October 24th
2028 Tuesday, March 28th Tuesday, April 11th - Monday, April 17th Sunday, June 4th Thursday, September 21st Saturday, September 30th Thursday, October 5th - Wednesday, October 11th Thursday, October 12th
2029 Monday, April 16th Monday, April 30th - Sunday, May 6th Sunday, June 24th Wednesday, October 10th Friday, October 19th Wednesday, October 24th - Tuesday, October 30th Wednesday, October 31st
2030 Friday, April 5th Friday, April 19th - Thursday, April 25th Sunday, June 9th Monday, September 30th Wednesday, October 9th Monday, October 14th - Sunday, October 20th Monday, October 21st
*Note: First day of the year for 2022 and 2023 was a day later due to no visible sighting of the crescent in Israel due to weather. This shifted the Holy Days in the first month by 1 day and for 2022 shifted Pentecost by 1 week.
The dates in this schedule are derived from astronomical calculation using the luni-solar calendar that is based on the sighting of the cresent from Israel, as detailed in the study available above. For all the dates listed the holy day actually begins on the night of the previous numbered day.