Ancient · Biblical · Precise

The Enoch Calendar

The Original Bible Calendar

Events of Scripture plot onto this calendar without conflict.

Today in the Enoch Calendar
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Next Feast
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Shemitah
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Jubilee
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★ On this day in history
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Carry the biblical calendar in your pocket.

A quiet reminder before every feast, High Sabbath, and seasonal turn — so you never miss an appointed time.

Feasts & High Sabbaths Season markers
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Explore the Calendar with Events of the Bible plotted onto it.

Enoch Calendar
📜 The Foundational Question
Wednesday or Thursday?
Seven independent biblical anchors — including the Book of Enoch itself — spanning fifteen centuries of history, settle which day starts the Enoch year — the one question every other date on this calendar depends on.
Read the seven-anchor argument
Enoch Calendar Converter

Convert any date to the Enoch Calendar

Open the calendar and switch to the side-by-side Gregorian + Enoch view — every day shows both dates at once. Or click any day, then tap the panel header at the top, to see its Gregorian, Enoch, and Julian dates together. It’s a built-in Enoch ↔ Gregorian date converter on every screen, and because the Enoch year is a fixed 364 days, every date falls on the same weekday, year after year.

Open the converter
Known by many names

The 364-day solar calendar documented in 1 Enoch 72 — the original calendar of the Bible — has been kept, copied, and studied under many names across more than two thousand years of history. Those names cluster into two distinct traditions — sharing the same 364-day structure but differing by exactly one day in where the year begins.

The Wednesday Tradition

Year begins on Wednesday — the tradition recorded in the Dead Sea Scrolls after the Babylonian exile. Known as:

  • Dead Sea Scrolls calendar
  • Qumran calendar
  • Essene calendar
  • Jubilees calendar
  • Book of Jubilees calendar
  • Priestly calendar
  • Sectarian calendar
  • Zadokite calendar
The Original Enoch Calendar

Year begins on Thursday — drawn directly from 1 Enoch 72 and confirmed by seven independent biblical anchors. Known as:

  • Bible calendar
  • Biblical calendar
  • Calendar of the Bible
  • Enoch calendar
  • Book of Enoch calendar
  • 1 Enoch calendar

The two traditions differ by a single day — a drift acquired during the Babylonian exile and confirmed by seven biblical anchors spanning fifteen centuries of history. Read the full argument →

Why one day apart · The Creation Week
Day 1
Light
no sun yet
Sunday
Day 2
Firmament
Monday
Day 3
Land & Plants
Tuesday
Day 4
☀
Sun Created
appointed
Wednesday
Wed. Tradition
Day 5
☀
First Sunrise
Year begins
Thursday
Original Enoch
Day 6
Animals & Man
Friday
Day 7
Sabbath
Rest
Saturday

Day 4 (Wednesday) — the sun was created.  Day 5 (Thursday) — the sun first rose.  The one-day difference between the two traditions traces back here.

About the Calendar

An ancient order,
made accessible

The 364-day solar calendar was first revealed to Enoch by the angel Uriel, who guided him through the heavens and showed him the laws governing the luminaries, their seasons, and their appointed times — written on the heavenly tablets and recorded in 1 Enoch 72. Preserved among the Dead Sea Scrolls by the Essene community at Qumran, it is a system of worship, festivals, and appointed times that traces back to the earliest biblical patriarchs. Unlike the modern Hebrew calendar — a rabbinic lunisolar system — it divides the year into four perfectly equal seasons of exactly 91 days each.

Every year turns on a Wednesday — the intercalary Tekufah day, the 31st day that closes each season, standing outside the ordinary count. It was the fourth day of creation when the sun, moon, and stars were set in the sky as signs for seasons and years. The first full counted day, Day 1, falls on Thursday. The calendar aligns Sabbaths, festivals, and agricultural cycles in a perfect, unchanging pattern.

↳ See the seven-anchor argument for Thursday as Day 1 and Wednesday as the Spring Tekufah

The Enoch Calendar maps the ancient calendar onto the modern Gregorian system with precision astronomy, letting you see both timekeeping traditions side by side — day by day, month by month, year by year — with real solar, lunar, and planetary data for your exact location.

🛰️ Sourced directly from NASA JPL DE441 All four solar events — both solstices and both equinoxes — across 7,000 years are drawn directly from NASA's DE441 ephemeris — the most precise solar model available — and built into the calendar. The astronomical accuracy is not assumed; it is the data itself.
⚙️
50,000+
Lines of code — built from the ground up as a full-featured web calendar
📅
364
Days per year — four equal seasons of 91 days, exactly as described in 1 Enoch 72
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250+
Biblical & historical events — from Adam to the present day
🛰️
7,000 yrs
All solstice & equinox times calculated from NASA JPL DE441 — built into the calendar
iPhone & iPad App

Track the biblical feasts — and your own days too

Every feast day, High Sabbath, and Tekufah season — with morning notifications so you never miss one. Add your own birthdays and anniversaries too, each mapped to its permanent Enoch calendar date.

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Feast Days & High Sabbaths

Every feast — Passover, Shavuot, Yom Kippur, Sukkot and more — plus every High Sabbath with its Leviticus scripture. Morning notifications arrive before each, so you never miss one.

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Fixed Date & Weekday — Every Year

Because 364 = 52 × 7, every Enoch date falls on the same weekday every year without exception. Your birthday isn't just 14 Tammuz annually — it's always a Wednesday. No other calendar can say that.

🎂

My Events — Your Birthday on the Enoch Calendar

Add birthdays, anniversaries, and personal milestones — each placed on the Enoch calendar automatically, recurring on the same date every year. The day before and the day of, a one-tap share button writes the message for you — no birth year or Gregorian date disclosed.

Example share text

Today is my birthday on the Enoch Calendar — 14 Tammuz, 5902 AM · Wednesday 🎂

Generated automatically on the day of your event. No birth year. No Gregorian date.

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Features

Everything in one place

A complete research and devotional tool — precise astronomy, ancient timekeeping, and biblical cycles in one place.

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Dual Calendar View

Toggle between a side-by-side Gregorian + Enoch Calendar view or a pure Enoch Calendar-only view. Click any day to see its Gregorian, Enoch, and Julian calendar dates together in one popup — an Enoch Calendar converter built into every screen, with all holidays and events visible at a glance.

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Biblical Holidays

Passover, Firstfruits, Shavuot, Yom Kippur, Sukkot, and more — placed on their exact biblical dates.

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Tekufah Season Markers & Leap Week

Each Tekufah day is visually split — left half shows the outgoing season, right half the incoming. The Leap Week is inserted based on the UTC spring equinox, making it consistent for every user regardless of timezone. A drift chart tracks the solar year across millennia.

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Jubilee & Shemitah Cycles

A live sliding timeline shows exactly where any year sits within the 7-year Shemitah and 50-year Jubilee cycles, with markers placed on every calendar day.

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Enoch Prophetic Timelines

The ten Enoch Weeks and their seventy Days are mapped as scrollable timelines across all of history — from creation to the final age — with your current position marked live.

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Solar & Lunar Data

Click any day for precise sunrise, solar noon, and sunset times for your location. Moon phase, moonrise, moonset, and full moon times are shown alongside hourly altitude and azimuth data for the Sun, Moon, and all visible planets.

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Countdowns & Master Timeline

Every feast, blood moon, and lunar eclipse carries a live countdown — see exactly how many days until the next one. Open View All Events to explore 250+ biblical and historical events on one zoomable master timeline, from creation to the far future.

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On This Day in History

See which biblical and historical events share today's Enoch Calendar date — the Temple's founding, a prophet's vision, a king's reign — surfaced automatically whenever their day and month come around again.

🛰️

NASA-Grade Precision

Every equinox, solstice, and moon phase is computed from NASA's JPL DE441 ephemeris — accurate to under a minute across all 7,000 years, from 3925 BC to 3175 AD. Not estimates: the same data NASA uses.

Beyond the Calendar

References and arguments behind the calendar

The original Bible calendar, the blood moon in scripture, the solar gate table of 1 Enoch 72, the starting day of the Enoch year, the chain of dates from the Exodus to the Crucifixion, the empires Daniel saw, the empires John saw, the ten weeks of the Apocalypse of Weeks — the references and arguments behind the calendar, each available as a full essay.

The Original Bible Calendar

The Calendar of Scripture

The calendar most Bibles are read against today is not the one the Bible itself describes. The case for the 364-day solar year — revealed in the Book of Enoch, assumed by the biblical narrative, and kept at Qumran — as the original calendar of scripture.

Essay · 9-min read Read →
The Blood Moon

A Sign in the Heavens

The moon turned to blood is one of the oldest signs in the Bible — Joel, Peter, and John all name it directly. What it means, and how to know when the next one falls and whether it will be visible from where you are.

Essay · 6-min read Read →
The Apocalypse of Weeks

Ten Weeks of History, Tested

A prophecy in 1 Enoch divides all of history into ten equal weeks of 700 years, each with its own event — Enoch, Noah, Abraham, the Temples, the Reformation. Every week's claim tested against real chronology, with a companion timeline showing where each date falls.

Essay · 16-min read Read →
1 Enoch 72 — The Solar Gate Table

How the Sun Walks the Heavens

The Astronomical Book reduces the solar year to a single table: twelve months, six rising portals on the eastern horizon, and the day-by-day count of light and dark. The calendar's own account of how the sun keeps time — the mechanism every other topic here rests on.

Reference · 15-min article Read →
Wednesday or Thursday?

A Lost Starting Point Recovered

Does the Enoch year begin on Wednesday or Thursday? Seven biblical anchors resolve only when Thursday is treated as Day 1 — with Wednesday standing as the Tekufah, the boundary day outside the count. The foundational calendar question.

Reference · 32-min article Read →
Biblical Chronology

The Chain That Holds

From the eclipse over Nineveh in 763 BC to Passover 32 AD — the chain of biblical dates anchored to Assyrian, Babylonian, Greek, and Persian records that survive outside Scripture. The Bible's chronology is verifiable, and this is how.

Reference · 30-min article Read →
The Empires of Daniel

Three Visions, One History

Babylon, Medo-Persia, Greece, Rome — seen three times in three different symbolic registers. A statue of metals, four beasts from the sea, a ram and a goat — all converging on six hundred years of subsequent history.

Reference · 27-min article Read →
The Empires of Revelation

Five Are Fallen, One Is

Seven kings counted by an angel from John's exile on Patmos. Egypt to the eschatological Beast — the empire sequence walked by a prophet alive inside the empire being counted, looking backward and forward to the consummation.

Reference · 30-min article Read →
Visit the full library →
Getting Started

Three steps to explore

1

Get Started

Get the free app for iPhone and iPad, or open the interactive calendar right in your browser — no account, no subscription.

2

Choose Your View

Switch between the Gregorian + Enoch Calendar dual view or a pure Enoch Calendar view. Jump to any month, year, or era instantly — from creation to far future.

3

Explore & Discover

Click any day for solar, lunar, and planetary data. Browse the Jubilee, Shemitah, and Enoch timelines, and add your own events and holidays.

"The heavens declare a perfect order — 364 days, four equal seasons, twelve months of the ancient solar calendar revealed to Enoch and recorded in 1 Enoch 72."

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Enoch Calendar

☀ View the full 1 Enoch 72 solar gate table  ·  Wednesday or Thursday? The Day the Entire Biblical Calendar Hinges On  ·  The Library — articles & references on biblical time