The Calendar Question: One Man’s Search for Yahweh’s Appointed Times
— A Personal Journey from Confusion to Conviction —
Opening: A Question That Wouldn’t Leave Me
It began with a simple question: “What day is it, according to God?”
Not according to my phone. Not according to the Gregorian calendar pinned to my wall. But according to the One who said, “Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years” (Genesis 1:14).
I live in northeast Victoria, Australia. I’m a follower of Yeshua the Messiah. And I wanted to know, as simply and honestly as I could: which calendar should I be using to keep the Father’s appointed times?
What follows is what I found. Not a lecture. Not a declaration that everyone else is wrong. Just my search, my reasoning, and my conclusion — offered in the hope that you’ll search too.
Chapter One: The Contenders
When I began researching, I discovered there isn’t one “biblical calendar” in circulation today. There are at least four major systems, each with sincere, intelligent, godly people behind them.
1. The Rabbinic Calculated Calendar (Hillel II)
Established around 358–359 CE by Hillel II, this is the calendar used by Orthodox Judaism worldwide — and, as it happens, by most Messianic congregations, including those here in Australia. It’s mathematically fixed: a 19-year cycle adds a 13th month in seven of those years, months are calculated by the astronomical conjunction of the moon, and the whole thing runs like clockwork for thousands of years.
Its strength: predictability, unity, and continuity with the Jewish community worldwide. Its weakness: it was adopted after the Temple fell, when the original observational system could no longer function. It replaced witnesses with arithmetic.
2. The Observational Calendar (Aviv Barley + New Moon)
This is the method that appears, on the surface at least, to flow straight from the Torah:
- Exodus 12:2 — “This month shall be the beginning of months to you” (the month of the Exodus, marked by green, ripening barley — Aviv)
- Deuteronomy 16:1 — “Observe the month of Abib”
- Numbers 28:11 — offerings commanded “in the beginnings of your months” (Rosh Chodesh — the new moon)
- Psalm 104:19 — “He made the moon to mark the seasons”
This is the system the Second Temple ran on: two witnesses sighting the crescent moon, the Sanhedrin confirming, fire signals spreading the news, and — in the twelfth month — inspectors walking the barley fields of Israel. If the barley was ready, the next new moon began the new year. If not, a thirteenth month was added, and the check was repeated.
This system is still kept today by Karaite Jews, the Samaritans on Mount Gerizim, and growing numbers of Torah-observant believers, using modern search teams in Israel to replicate the ancient witnesses.
3. The 364-Day Solar (Zadok/Enochian) Calendar
Found in 1 Enoch (chapters 72–82), the Book of Jubilees, and the Dead Sea Scrolls, this calendar divides the year into four seasons of exactly 91 days (30 + 30 + 31), producing exactly 52 weeks. Every date falls on the same weekday every year, and the year always begins on a Wednesday — the fourth day, when the luminaries were created in Genesis 1.
It is elegant. It is precise. And it is compelling to anyone who has ever grown weary of a calendar that never seems to hold still.
But I came to notice something the advocates rarely mention: the solar year is actually 365.2422 days. A 364-day year drifts about 1.25 days per year. Within fifteen years, Passover walks out of spring. Within a lifetime, it migrates through every season. Recent scholarship from Tel Aviv University suggests the Qumran community, who kept this calendar, eventually abandoned it for exactly that reason.
4. The 24-Month Variant and Others
Beyond these three, there are further variations — 24 half-months, different intercalation schedules, different anchors. Wherever two or three are gathered, apparently, there is a calendar debate.
The Question That Changed Everything
Once I understood the options, I had to ask the harder question:
Which of these is Yahweh’s?
Not which is oldest. Not which is most convenient. Not which is defended by the loudest voices. Which one did He command?
And here is what stopped me in my tracks:
The Torah — the actual, first five books, written by the finger of God through Moses — gives the framework:
- Genesis 1:14 — the luminaries are “for signs, and for seasons [mo’adim], and for days, and for years”
- Exodus 12:2 — “This month shall be the beginning of months for you”
- Deuteronomy 16:1 — “Observe the month of Abib”
- Leviticus 23 — the feasts, with their dates, “throughout your generations in all your dwellings”
- Deuteronomy 4:2 / 12:32 — “You shall not add to the word which I command you, nor take away from it”
But the Torah never states the length of a year. Never fixes a weekday for the new year. Never imposes 30-day months. Never commands a Wednesday start. Never removes the moon from the calendar.
Those things come from elsewhere — from 1 Enoch and Jubilees, texts written in the second century BC, treasured by some but not part of the Torah, and not part of what Yeshua lived and kept.
And Yeshua himself? He kept the feasts in their seasons — Passover in spring, Tabernacles in autumn — on the observational calendar of his day. John’s Gospel is full of it: Passover, Tabernacles, the last great day of the feast. He never observed a drifting 364-day grid. He kept His Father’s commandments as they were actually kept.
My Conclusion: The Wisdom of God Confounds the Wisdom of Man
“For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the prudent.” — 1 Corinthians 1:19
Here is where I landed, and why.
The 364-day calendar is, by human standards, brilliant. It’s tidy. It’s mathematically perfect. Every festival lands on the same weekday forever. It appeals strongly to the part of us that wants certainty, systems, and control.
But notice what it demands: that we add to the Torah a fixed year-length it never states, a weekday it never commands, and a month-pattern it never describes — and that we take away from the Torah the new moon observation it does command (Numbers 28:11), the Aviv barley watch it does command (Deuteronomy 16:1), and the flexibility that keeps the feasts in their seasons (Exodus 13:10).
Meanwhile, the calculated Hillel calendar, for all its elegance, replaces watching with computing.
And here is the thing that settles it for me: Yahweh’s system was never meant to be a machine. It was meant to be a relationship.
A calculated calendar can be run by anyone, anywhere, with no faith required. But the observational system? It requires you to watch the sky. It requires witnesses. It requires checking the land, waiting on the declaration, trusting that Yahweh will make His signs plain to those who seek them. It requires faith — the daily, active kind.
God designed a calendar that cannot be kept from an armchair. It demands that His people look up.
That, I believe, is the point. “The wisdom of this world is foolishness with God” (1 Cor 3:19). Human genius wants to lock the appointed times into a permanent grid — but Yahweh built a calendar that keeps His people dependent on Him: watching the moon He painted into the sky, watching the barley He causes to grow in the Land, receiving the testimony of witnesses.
It’s less efficient. It’s less certain. And it’s exactly what He commanded.
So here is my determination, made in fear and hope:
- I will keep the calendar the Torah actually describes — observational, anchored to Israel’s Aviv and new moon, as Yeshua Himself kept.
- I will watch the new moon from where I live — Victoria, Australia — and anchor the year to the Aviv witness in the Land of Israel, just as the exiles did.
- I will keep the feasts in my dwellings(Leviticus 23:31), sunset to sunset, on local time — with the pilgrimage elements held in hope for the Land and the redemption.
- I will not add to or take away — which means letting go of the elegant 364-day system, however appealing it is to the human mind, because it adds what Torah never commanded and removes what it did.
- I will keep the seventh-day Sabbath unbroken, and I will walk as Yeshua walked.
I’m not writing this to condemn anyone who has weighed these things differently. Many brilliant, faithful people keep the Rabbinic calendar, or the Zadok calendar, with full sincerity. I present my reasoning, not a verdict on their souls. That judgment belongs to the Judge of all the earth.
What I am inviting you to do is what the Bereans did (Acts 17:11): search the Scriptures daily, whether these things are so. Look at the options. Test them against the Word. And choose — not because a blogger told you to, but because you sought the Father’s face and found it.
His wisdom confounds ours. His calendar keeps us looking up. I’ve chosen to trust that this is not an accident, but a design.
“For my thoughts are not your thoughts, neither are your ways my ways, saith the LORD. For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts.” — Isaiah 55:8–9
A Closing Blessing
May the God of Abraham, Isaac, and Jacob open your eyes to see the signs He hung in the heavens. May the moon mark your months and the barley of Israel mark your years. And may you, like your Master, keep your Father’s commandments — not because it is easy, but because it is written.
“Your word is a lamp unto my feet, and a light unto my path.” — Psalm 119:105
Shalom.
Disclaimer
This blog post reflects one believer’s personal study, convictions, and conclusions regarding the biblical calendar. It is shared in the spirit of iron sharpening iron and is not intended to judge, condemn, or pressure any reader. Sincere and godly people hold each of the calendar views discussed — Rabbinic-calculated, observational, and 364-day solar — and many within mainstream Jewish and Messianic communities hold views different from those expressed here. The scriptural interpretations offered are the author’s own, arrived at through personal study, and readers are respectfully encouraged to study the primary sources for themselves — the Torah, the Prophets, the Writings, and the accounts of Yeshua’s life — and to seek wise counsel within their own communities before arriving at their own convictions. Nothing here should be taken as authoritative religious instruction, an official halachic ruling, or a claim that any person or community has attained perfect understanding. Where references are made to third-party websites, organisations, or ministries, no endorsement or affiliation is implied. All readers are encouraged to test everything against Scripture (1 Thessalonians 5:21) and to act according to their own conscience before God (Romans 14:5).
