The New Moon Series


Welcome to The New Moon Series!

Are you confused about which calendar to follow when observing the feasts of YHVH? If so, you are in the right place.

This series with take you through every aspect of this hotly debated topic. Unlike other sites that ignore one aspect or another, the goal here is to examine very aspect related to the topic so we can eliminate what’s wrong and embrace what’s on target to the best of our ability

Whether you consider yourself to be a Messianic, Hebrew Roots, or Torah Observant believer, you need to see these presentations on this hotly debated topic. Be sure to check out these presentations, as well as the appendices and reference sections at the end of the presentations for additional information. Please share it with your assemblies and provide feedback.

I am aware that the content of these presentations may be shocking to some who have settled on a particular view regarding the new moon and God’s calendar issues. However, please bear in mind that your decision may have been made while you lacked certain pieces of knowledge on this vast subject. Therefore, it would be wise to view this entire series before continuing in your current belief and practice. Also, bear in mind the important goals presented in the beginning of these presentations as you move forward.

If you find that you are having trouble understanding the content of these presentations, assume it is a spiritual problem. Command any demons that may be hindering your ability to understand to stop in the name of Yeshua HaMashiach.

Thank you!

(NOTE: The original series was done in 2018-2019. What follows are the revised videos from May-August 2021. PDF versions are no longer available.)

Photo: By Ronnie Robertson (New Moon IMG_6949)

[CC BY-SA 2.0 (, via Wikimedia Commons

The New Moon Series Contains 8 parts:

  1. Day – Yom
  2. The Significance of the New Moon
  3. Historical Practice and Debate of the New Moon
  4. Basic Astronomy
  5. The Hillel II Metonic Cycle
  6. The Actual Astronomical Lunisolar Cycle
  7. Evaluating Hebraic Calendars
  8. A Calendar for YHVH’s People

Each presentation in this series provides the building blocks necessary to evaluate the various Hebraic calendars being used by YHVH’s people and to embrace a calendar for YHVH’s people that is as Scriptural as possible, so that they can observe YHVH’s feasts in their appointed times.

  1. In Day – Yom, we use Scripture to define day and night, morning and evening, between the evenings, from evening to evening, and how to reckon a day, which is from sunset to sunset. 1 Day (Yom) – New Moon Series – YouTube
  2. In The Significance of the New Moon, we look at the thematic pattern of a hybrid of moon phases — full moon, waning crescent, conjunction, and new crescent moon. Based on this pattern, the full moon is a time of life; the waning crescent is a time of falling out of favor or decline in life; the conjunction represents hiddenness and death — not birth; and the new crescent phase represents birth, resurrection, and new life. YHVH also reveals to us how various events in the Tanach and Brit Chadashah thematically demonstrate the phases of the moon. Following this is an introduction to the use of the equinox to identify the month of aviv (spring). 2 The Significance of the New Moon – New Moon Series – YouTube
  3. In Historical Practice and Debate of the New Moon, I present the debate over the various opinions concerning when Torah-observant believers should reckon the new moon; the various definitions of new moon — both English and Hebrew; the debate over the use and meaning of ceseh or casah in Psalms 81:3 — which fails to support the position of conjunction; and the three time periods in history regarding the sighting of the new moon, including the Jews’ transition to the Hillel II’s calculated calendar. We continue by addressing the debate over the need to examine the stage of wild or domestic barley to determine spring; the Jewish position regardng the use of the spring and fall equinoxes as it applies to the Hillel II calendar; and we end with only a very brief summary of the Hillel II calendar since there is a separate presentation on the Hillel II’s Metonic Cycle. 3 Historical Practice & Debate of the New Moon – New Moon Series – YouTube
  4. In Basic Astronomy, you will learn about the celestial field, equatorial plane, ecliptic plane, the mazzarot (zodiac), right ascension, declination, plane of the moon, moon phases, equinoxes and solstices, seasons, precession, ages, and YHVH’s clock. This clock includes the movement of the sun and moon, as well as how precession affects aviv. You will also see the moon as it passes through the constellations in a month, as well as see the sun move through the constellations in a regular year and leap year. 4 – Basic Astronomy – New Moon Series – YouTube
  5. In Hillel II’s Metonic Cycle, we will discuss the various details of the Hillel II Metonic Cycle and calendar which include the number of days for each month, types of years in the calendar, rules of postponement, leap years, and how to determine which Hillel II calendar years are leap years. This presentation will give you the remaining background knowledge necessary to evaluate Hebraic calendars. 5 The Hillel II Metonic Cycle – New Moon Series – YouTube
  6. In The Actual Astronomical Lunisolar Cycle, you will see that it is very different from the Hillel II Metonic Cycle. The Actual Astronomical Lunisolar Cycle was determined by examining 72 years worth — or four 19-year cycles worth — of right ascension data for conjunctions and 15 days post-conjunction. Using the key the Jews set forth for the start of the year for the Hillel II calendar — the timing of the equinox/sun’s position in the mazzarot/zodiac in relation to the 15th of Nisan — we determine the start of Nisan in aviv (spring). We can see how the actual lunisolar cycle has different leap years than the Hillel II calendar. In fact, it is very precise from cycle to cycle. This information is vital for those who desire to celebrate YHVH’s feasts in their appointed times. We can see how the actual lunisolar cycle has different leap years than the Hillel II calendar. In addition, the start of the cycle is not in the same year as the Hillel II calendar. The leap years still occur in the same span of 3-3-2-3-3-3-2. This actual lunisolar cycle is very precise from cycle to cycle. This information is vital for those who desire to celebrate YHVH’s feasts in their appointed times. 6 The Actual Astronomical Lunisolar Cycle – New Moon Series – YouTube
  7. In Evaluating Hebraic Calendars, we look at the basics, as well as pros and cons, of various solar calendars and lunisolar calendars that are being utilized by YHVH’s people. We review Gregorian and Julian calendars and their leap day. Next we look at the Enoch, Jubilees, and Qumran calendars followed by the Karaite, Michael Rood International, World’s Last Chance, Hillel II, Heaven & Earth (119 Ministries), and finally the criteria proposed for the Highway to Holiness calendar, which is based on the actual lunisolar cycle. 7 Evaluation of Calendars Used By YHVH’s People – YouTube
  8. A Calendar for YHVH’s People takes you step-by-step through the process of how to create a yearly Hebraic calendar for you and your assembly. It also shows you what is happening on conjunction day across the time zones around the world. Since conjunction really takes place at the same time all around the world, there is no need to worry about what is happening in Israel. The best way to be as close to what’s going on in Israel is to create your calendar according to the conjunction and sunset time in your own time zone. This calendar takes what was learned in past presentations to correctly build your Hebraic calendar by identifying the last and first day of the month, as well as the correct first day of the year. After that, all you need to do is add the Hebrew month names and feast dates. 8 – A Calendar for YHVHs People – YouTube



Executive Summary of the New Moon Series  (Text-PDF) — This is Word text summary of the New Moon Series. Last edited 8/14/2021.

Planetarium Software:

Tips for Stellarium – If you choose to download Stellarium and its user guide from for FREE, you might find this presentation a little more user friendly to get you started for the purposes we’ve discussed in the presentation, A Calendar for YHVH’s People. Enjoy! Last edited 9/16/2018.


  1. Is the method you propose still feasible when using only technology that was available to Hebrews living approximately 3000 years ago?

    Also, do you have any thoughts as to why there was not more detail provided on this topic in the Scriptures?


    1. The only method they had was counting the days and visually sighting the crescent moon, which they did not always see. They had to deal with false sightings, and they would declare it without sighting it based on a count of 30 days. They did the best they could with what they had, and their calendar is based on the old Ptolemaic model of planetary motion. So, they had and still have issues.
      For us today, our lives are much different. We plan precisely for events way in advance to secure places for specific times for the feasts, which includes contracts and down-payments for conference meetings and campsites, etc. They knew approximate timing and did not have the same logistics we deal with today. This method, as far as I know, is the most accurate method with our current technology and understanding of Kepler’s laws planetary motion.. I believe that we are held responsible to the degree that our knowledge and technology allows.
      I wish more information was provided about the observance of the new moon. We don’t get that in Leviticus 23. We get allusions in other passages.
      I have no idea why more information was not provided in Scripture. The best source for actual practice is Kiddush HaChodesh. It shows how things were originally practiced, including accepting witnesses, and describes the calculations for the Hillel II calendar.


      1. Hi,

        its same in the holy Quran. a lot of things are mentioned in the quran regarding the metonic cycle as well


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