“Remember the Sabbath day, to keep it holy. Six days shalt thou labour, and do all thy work: But the seventh day is the Sabbath.” Exodus 20:8-10
For people wanting to obey the Bible commandments, the question is: “Which is day one?” All can count to seven, but where does the count begin? How can you know which is the true seventh day? The Creator Who made the week also designed a month in which to place that week. 
The calendar of Creation begins with New Moon Day followed by four complete weeks. Each week contains six work days and a seventh-day Sabbath rest.
In the beginning, the Creator designed the movement of the sun and the moon to measure time.
“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 [H41501; religious gatherings], and for days, and years: . . . Two great lights [were set] . . . in the firmament of the heaven . . . to rule over the day and over the night.” (Genesis 1:14, 16-18)
Time can be measured only by movement. The revolution of the sun measures a day. In 365 and a quarter days, the sun returns to the same relative position above the earth. This is one solar year. The moon’s 29 and a half day cycle measure a lunation, which is the basis of the month. Twelve and a third lunations are the same length as a solar year.
There are three basic calendar formats using the movements of the sun and the moon:
- Solar: Solar calendars use the sun for measuring the length of the year only. Months of arbitrary length have no link to nature. On the Gregorian solar calendar, weeks cycle continuously. Even leap day, every four years, does not disrupt the continuous weekly cycle.
- Lunar: Lunar calendars are based strictly on the cycles of the moon. Months, which begin the first dawn after conjunction, cycle continuously without adjustment to the solar year. Because 12 lunations are 11 days shorter than a solar year, lunar months float through the seasons.
- Luni-solar: The sun and the moon functioning together make a luni-solar calendar. Lunations are adjusted to the longer solar year by adding a 13th month seven times in 19 years. The weekly cycle restarts with every new moon. Each lunation has four complete weeks.
The calendar established at Creation is luni-solar. It is the most accurate and precise of all time-keeping systems.
In Scripture, each lunation starts with the celebration of a special day of worship: New Moon Day. Because it is a worship day, it cannot be counted as part of the 6 work days in the first week of each month. New Moon Day starts with the first dawn after the astronomical new moon also known as the conjunction. Six work days follow and then a seventh-day Sabbath on the eighth of the month. Three more weeks follow, ending on the 29th. Through measurement and calculation in the days leading up to the 29th, the time of conjunction is revealed so one can determine if the month has 29 or 30 days. No month ever has more than 30 days.
The true luni-solar calendar is very user-friendly. Days of the week always fall on the same dates of the month. 
Every time a seventh-day Sabbath in Scripture is assigned a date, it always falls on the 8th, 15th, 22nd and 29th days of the month.
Scripture states that the moon was created specifically to measure times for worship.
“He appointed [created] the moon for seasons [H41501; worship times].” (Psalm 104:19)
Creation week ended with a Sabbath day’s rest. Exodus 31 states that the Sabbath is to be kept throughout all generations.
Verily My sabbaths ye shall keep: for it is a sign between Me and you throughout your generations; that ye may know that I am Yahuwah that doth sanctify you. (See Exodus 31:13.)
The seventh-day Sabbath was designed by the Creator to be the sign of loyalty between Himself and His people. The enemy, Lucifer, has changed the civil calendar and stolen the worship due to the Creator. Through tradition and assumption, Lucifer has united the world in using a solar calendar with continuously cycling weeks. When one worships reveals whom he worships. All who use a solar calendar for calculating their days of worship are, unknowingly, giving their allegiance and worship to the great Deceiver.
Those desiring to show their allegiance to the Creator will worship Him on the day He has designated. To find the correct day of worship, the luni-solar calendar established at Creation must be used.
Scripture reveals that the calendar used for worship throughout all eternity will be based upon the new moon:
“And it shall come to pass, that from one new moon to another, and from one Sabbath to another, shall all flesh come to worship before Me.” (Isaiah 66:23)
Whom do you worship? To whom to do you give your allegiance? The calendar you use to measure time for worship reveals the deity you worship.
Concerning the Video Below: This video was made before WLC accepted the geocentric Flat Earth truth as opposed to the heliocentric globe model. Consequently, it still contains elements of the heliocentric model. The primary point of the video, though, (i.e. The Biblical Calendar is luni-solar) remains intact and is important for Yahuwah’s faithful to understand. Consequently, WLC has decided to leave it published.
Related Content:
- Luni-Solar Calendar Guide Application
- The Creator’s Calendar (Content Directory)
- The Lunar Sabbath for SDAs (Content Directory)
- Letter to SDA Addressing Apostasy & the Refusal of New Light
- Why didn’t WLC adopt the Day After the Full Moon as New Moon Day?
1 “Since the Jewish festivals occurred at regular intervals, this word becomes closely identified with them . . . Mo’ed is used in a broad sense for all religious assemblies. It was closely associated with the tabernacle itself . . . [Yahuwah] met Israel there at specific times for the purpose of revealing His will. It is a common term for the worshiping assembly of . . . [Yahuwah’s] people.” (See #4150, “Lexical Aids to the Old Testament,” Hebrew-Greek Key Word Study Bible, KJV.)
The Creator’s Calendar
[Verse 1]
By the light of the moon, Father Yahuwah made time,
With the sun for the seasons, His order sublime;
Six days for our labor, then Sabbath to rest,
The seventh He hallowed, His pattern is blessed;
The new moon begins it, the count starts anew,
Father Yahuwah’s calendar stands firm and true.
[Chorus]
Rise up and remember, Father Yahuwah’s decree,
His Sabbath appointed for worship shall be;
The moon marks the seasons, the heavens proclaim,
His calendar stands firm and honors His name;
From new moon to Sabbath, His order we know,
Father Yahuwah’s appointed times faithfully show.
[Verse 2]
The first day begins when the new moon is seen,
Then six days for labor, with Sabbath between;
On eighth comes the Sabbath, then fifteenth arrives,
The twenty-second and twenty-ninth keep the lives;
Four weeks in the lunation, the pattern is clear,
Father Yahuwah established this order each year.
[Chorus]
Rise up and remember, Father Yahuwah’s decree,
His Sabbath appointed for worship shall be;
The moon marks the seasons, the heavens proclaim,
His calendar stands firm and honors His name;
From new moon to Sabbath, His order we know,
Father Yahuwah’s appointed times faithfully show.
[Verse 3]
The sun marks the yearly returning of light,
The moon marks the months as it moves through the night;
Together they measure the seasons and days,
A luni-solar calendar follows His ways;
With thirteenth months added when cycles align,
Father Yahuwah’s wisdom in order shall shine.
[Bridge]
The Sabbath’s a sign of allegiance and grace,
A mark of obedience before His own face;
Tradition may alter the calendar’s frame,
But Scripture still calls us to honor His name;
When worship is counted, our choice will reveal,
Father Yahuwah’s true Sabbath is steadfast and real.
[Verse 4]
Isaiah declares that the new moons shall stand,
With Sabbaths for worship before Him shall land;
From new moon to Sabbath, all flesh shall appear,
To worship the Creator throughout every year;
His appointed times shall forever remain,
Father Yahuwah’s calendar shall not be in vain.
[Chorus]
Rise up and remember, Father Yahuwah’s decree,
His Sabbath appointed for worship shall be;
The moon marks the seasons, the heavens proclaim,
His calendar stands firm and honors His name;
From new moon to Sabbath, His order we know,
Father Yahuwah’s appointed times faithfully show.
[Outro]
Who governs our worship? The answer is clear,
The Creator determines the days we hold dear;
We follow His order, His Sabbath we keep,
His truth is our anchor, His covenant deep;
Through ages eternal, His word shall prevail,
Father Yahuwah’s calendar forever shall hail.
Hello Fellow Believers,
The Pharisees were obviously keeping the Roman Julian calendar of the day that had 8 days a week. Just as most people today are keeping the Gregorian calendar even though they are Christian. That’s why Yahusha kept the Passover with His disciples a day before the crucifixion in the lunar solar calendar on the evening of the 14th. while the Pharisees crucified Him on the 15th which was the true Passover day. And then they hurried home to keep the Passover on the 14th of the Julian calendar. They said themselves “We have no king but Cezar.” The 3 days and 3 nights are the only sign given to a faithless generation. So yes He would be crucified on the 6th day and rise again before dawn on the first day of the week in the Julian calendar. Please let me know your thoughts. Thank you.
Kind Regards,
Katie
Thank you for reaching out and sharing your thoughts on this critical study of the crucifixion timeline, Katie. Our ministry emphasizes the restoration of the true biblical calendar, yet historical records show that first-century Jewish leaders did not use the Roman Julian calendar for their temple services. The Pharisees and Sadducees still strictly used a lunar-based calculation to determine the annual feast days, meaning they crucified Master Yahushua on the literal 14th day of Abib, the true preparation day for the Passover. The rush to get home before sunset was because they were approaching the night hours of the 14th, hurrying to kill and roast the national lambs so they could eat the Passover meal that very night before the dawn of the 15th arrived.
Within the true scriptural framework, where the day begins at dawn, Master Yahushua chose to eat the Passover meal with His disciples on the evening of the 13th of Abib, a full day early, because He, as the Son of Father Yahuwah, knew He would be hanging on the cross as the true Passover Lamb when the official temple sacrifices began on the afternoon of the 14th. By gathering His disciples on the eve of the 13th, He anticipated the feast and established the new covenant emblems of bread and wine before His arrest, ensuring He could eat with them one last time before willingly giving His life. The sign of Jonah—the three days and three nights—remains the absolute proof of His identity, showing that He perfectly fulfilled the spring feasts according to the Creator’s layout rather than a Roman system. We must look past human calendars, such as the Gregorian and Julian systems, entirely to realize that all the events of salvation happened perfectly in line with the sun and moon.