Feasts & New Moon Dates

Following are dates of the Biblically commanded Feasts for the coming year.  These are not only Jewish Holy Days.  In Leviticus 23:2 YHVH tells us, “These are My appointed festivals, the appointed festivals of the Lord, which you are to proclaim as sacred assemblies.”  They are YHVH’s specially appointed times available to all His followers.  Mark your calendar and plan ahead to participate with YHVH on His Holy Days!

On the Hebrew/Biblical calendar a day begins and ends at dusk (See Genesis 1).
Accordingly, each of these Feasts begins and ends at sundown on the days listed:

Other Observances:

  • Chanukah: begins at sundown on Sunday, December 14, 2025 and ends at nightfall on Monday, December 22, 2025.
  • Fast of Esther: (Ta’anit Ester, Hebrew: תַּעֲנִית אֶסְתֵּר) is a Jewish fast from dawn until dusk on Purim eve, commemorating the three-day fast observed by the Jewish people in the story of Purim. 
  • Purim: Begins begins at sundown on  and ends at nightfall on .

Spring Feasts:

  • Beginning of Months: on Aviv/Nisan 1 – evening of March 29th through March 30th, 2025 (New Moon Conjunction)
  • Passover/Pesach: Full moon evening of  (Lev. 23:5)
  • Feast of Unleavened Breads/Hag Matzot: a Holy Convocation on the first day from Pesach eve on Friday, April 11 through Saturday, April 12 after sundown, then week of Unleavened bread observed through Friday, April 18, 2025 at sundown with a a Holy Convocation on the 7th day of Unleavened Bread from Thursday evening April 17 through Friday, April 18, 2025 at evening. (Lev. 23:6)
  • First Fruits (first day after weekly Shabbat after Passover we start counting 50 days up to Shavu’ot): Sunday, April 13th, 2025
  • Counting the Omer: Count 50 days starting from the evening before Sunday, April 13th through to Sunday, June 1st, 2025 (From the day after the Sabbath (counting starts after sundown Saturday evening) through 7 complete sabbaths – Lev. 23:15-16) (Anniversary of Ten Commandments given on 6th of Sivan falls on June 2nd, 2025 in Israel)
  • Feast of Weeks/Shavu’ot/Pentecost in the 3rd Month: a Holy Convocation from evening of Saturday, May 31st – Sunday, June 1st, 2025 (“And this whole Feast was celebrated in heaven from the days of Creation…” Jubilees 6:18) (“And she [Sarah] bore a son in the third month [Sivan], and in the middle of the month, at the time of which Hashem spoken to Avraham, on the Feast of the Firstfruits of the harvest, Yitzchak was born.” Jubilees 16:13 – Note: this shows that Shavu’ot when counted correctly as 7 complete Sabbaths it can even sometimes fall close to the middle of the month!  This year the full moon of the middle of the month is on the 11th and Shavu’ot falls just a few days before.) (“…and so they came to Yerushalayim as the Feast of Weeks was approaching” 2 Maccabees 12:31)  (“And when the day of Shavu’ot was fully come, they (the talmidim) were all with one accord in one place.” Acts 2:1

Fasts:

(To Learn more about the The Four Fasts of Zechariah 8:19 described below click Rabbi Isaac’s article here)

  • The Three weeks of mourning: The “Three Weeks” and Tisha B’Av are designated as a time of mourning over the destruction of the Holy Temple and the galut (exile)… see dates below:
  • Fast of the 4th Month, on the 17th “Tzom Tammuz“– July 12, 2025 (morning to evening)
  • Fast of the 5th Month, on the 9th “Tish’a B’Av” – sunset of August 1-August 2, 2025
  • Fast of the 7th Month, on the 3rd is “Tzom Gedaliah” – September 24, 2025 (morning to evening)
  • (We also fast on the 10th day of Tishrei “Yom Kippur” – Sundown September 30th until nightfall on October 1st
  • Fast of the 10th Month, on the 10th day of Tevet “Asarah B’Tevet” – December 30, 2025 (morning to evening)

Fall Feasts:

  • Feast of Trumpets/Yom Teruah/Rosh Hashana:  A Holy Convocation announced with the Blasts of the Shofar – From the evening of Sunday, September 21st, 2025 (See new moon list below) through the Holy Day on Monday, September 22nd, 2025 (Lev. 23:24).  (The two day New Moon Feast goes from the evening of September 21st, 2025 and ends nightfall of September 23rd, 2025)
  • Day of Atonement: 25 hour fast from the evening of Tuesday, September 30th, 2025 through Wednesday, October 1st, 2025 at sundown. (Lev. 23:27) a Holy Convocation
  • Feast of Tabernacles/Shelters/Harvest: a Holy Convocation from Erev Sukkot (Holy Day) at sundown on Sunday, October 5th, through Monday, October 6th, 2025 (No work permitted on October 6th), – then a week long feast through Monday, October 13th, 2025, the Last Great Day “Hoshana Rabbah” (Lev. 23:34)
    (Following the seven joyous days of Sukkot comes the happy holy day known as Shemini Atzeret/Simchat Torah)
  • The Eighth Day/Shemini Atzeret/Simchat Torah: Evening of Sunday, October 12th through next day of Monday, October 13th, 2025 a Holy Convocation according to Lev. 23:36.  (No work is permitted. Yizkor is recited on Shemini Atzeret, October 13th)

To Download our free Jewish Holiday calendar click here

New Moon Dates

The Hebrew calendar is based on the lunar cycle. For more information on the New Moon and how to calculate it God’s way, read our study and findings called: New Moon Study – Observing the Beginning of the Month God’s Way

To find all the New Moons and Full Moon’s, please check out TimeandDate..com and mark your calendar.  You can view the Expected Dates of New Moons by clicking here or view below.

Understanding the Conjunction New Moon and Rosh Chodesh…

The moon begins to illuminate immediately after conjunction. We cannot see it, though, until the sun sets because the moon is obscured by the greater light of the sun. The fact that we cannot see the moon immediately after conjunction, however, does not negate the fact that it has already began a new revolution with new illumination. Often, the first visible crescent can only be seen a day or two later, either on the following evening of New Moon Day which then call day 1, or even seen a day later, and this is why we don’t wait to see the crescent moon to call day 1, but simply use the crescent as a confirmation of the new month.

 

How to Count the Months / When to Celebrate

With modern advances in astronomical instruments and calculations, we know ahead of time when precisely the new moon will occur, and therefore when the new month will begin. Below are some key points to remember in determining when the Hebrew month begins:

  • The 1st day of the Hebrew month begins at sunset following the new moon conjunction.
    • Therefore, if the conjunction occurs before sunset, the new month will begin at sunset on that same calendar day. If the conjunction occurs after sunset, the new month will begin at sunset on the next calendar day.
  • Sighting the first crescent of the moon is only a second confirmation that we have begun the new month, not the sign to start the new month. It often does not appear until the evening of the second day of the new Hebrew month.
  • At our assembly we celebrate Rosh Chodesh (“Head of the Month”) for two days, one on the first night of the new month, and one on the next day to sight the crescent moon in remembrance of the ancient Sanhedrinic practice.
  • Important: occasionally the new moon and sunset occur very close together, meaning that the day on which the new Hebrew month begins may differ based on the latitude of your location (see note below for example). It is best practice to determine for yourself when the new month will be based on whether the new moon will occur before or after sunset at your location.

It should be noted that work is permitted on Rosh Chodesh unless it coincides with the weekly Shabbat or a Holy Day (such as the Rosh Chodesh of Tishrei, which is always Yom Teruah/Rosh Hashanah).

The table below shows the Hebrew months and their Rosh Chodeshim as they correspond to the Gregorian calendar we use in our daily lives. Times and dates for astronomical events (new moons, sunsets) are based on Wenatchee, WA and have been obtained from timeanddate.com.

A practical example: According to astronomers (timeanddate.com), the new moon occurs at 4:35 AM on January 29th, 2025 (in Wenatchee, WA, USA). The next sunset will be in the evening of the same day, January 29th, which will occur at 4:58 PM. Thus, as of about 4:58 PM on January 29th, it is the first day of the Hebrew month of Shevat (Hebrew days begin at sunset). We celebrate for two days, sighting the crescent moon the following evening (January 30th, the start of Shevat 2nd) and ending the celebration in the evening of January 31st (the end of Shevat 2nd).

IMPORTANT NOTE: This year of 2025, the new moon and sunset for the beginning of the month of Sivan occur close together, meaning that the 1st of Sivan (and the rest of Sivan) may differ by one day depending on the latitude of your location.

  • For example, here in Wenatchee, WA, USA, the new moon beginning Sivan occurs on May 26 at 8:02 PM, and sunset is at 8:44 PM, so we observe the beginning of Sivan at sunset on May 26. By contrast, in San Diego, CA, USA, the new moon still occurs at 8:02 PM, but sunset occurs at 7:48 PM. Therefore, observers in San Diego (and further south) should not begin Sivan in the evening of May 26 since the new moon has not yet occurred, but rather at sunset on May 27, the first sunset to follow the new moon conjunction.
  • It all balances out in the end: San Diego and further south will have 30 days of Iyar rather than 29, and 29 days of Sivan rather than 30, but everyone will begin Tammuz on the same calendar day because the new moon and sunset do not occur close together on June 25.
  • This year it does not affect the observance of any Moedim (Holy Days), but as it is a possibility in future years that people living at different latitudes would observe Holy Days on different calendar days due to starting the Hebrew months on different calendar days, we encourage everyone to maintain the habit of counting Hebrew months for themselves based on their own locations rather than depending on the table we provide.
Month:
# of Days		New moon date @ timeSunset time that day1st of Hebrew month (at sunset)Rosh Chodesh festival
Shevat: 29Jan 29 @ 04:3516:58Jan 29Jan 29-31
Adar: 31Feb 27 @ 04:4417:43Feb 27Feb 27-Mar 1
Nissan: 29Mar 29 @ 03:5719:27Mar 29Mar 29-31
Iyar: 29Apr 27 @ 12:3120:07Apr 27Apr 27-29
Sivan: 30May 26 @ 20:0220:44May 26May 26-28
Tammuz: 29Jun 25 @ 03:3121:02Jun 25Jun 25-27
Av: 30Jul 24 @ 12:1120:44Jul 24Jul 24-26
Elul: 29Aug 22 @ 23:0619:59Aug 23Aug 23-25
Tishrei: 30Sep 21 @ 12:5419:00Sep 21Sep 21-23
Cheshvan: 30Oct 21 @ 05:2518:01Oct 21Oct 21-23
Kislev: 30Nov 19 @ 22:4716:20Nov 20Nov 20-22
Tevet: 29Dec 19 @ 17:4316:12Dec 20Dec 20-22
Shevat (2026): 30Jan 18 (2026) @ 11:5216:42Jan 18Jan 18-20
Note: All Conjunction New Moon times above are Pacific Time for Washington State, USA. Sunset times are for Wenatchee, WA, USA.

Enoch and Philo record the ancient way of the Moon:

We should all have the unwavering desire to serve and please the Eternal One and keep his commandments, (Ecclesiastes 12:13) for this is the duty of Man. The Book of Enoch is a biblical reference and also serves as a historical reference when mentioning the Luminaries.  Enoch mentions in full detail the elements and behaviors of the Lunar Cycle and how to determine when the Moon is: ‘NEW, FULL and in CONJUNCTION’ by human observation.  The book of Enoch at one time was part of Scriptural writings and in Enoch 73:4 it says that the moon rises in this manner: Its head faces the easterly direction, coming out on the thirtieth day, on that day, that is, on the thirtieth day, it comes into existence, and it appears with the sun in the gate through which the sun exits; and you have the beginning of the month.  

And on the first day she is called the NEW MOON, for on that day the light rises on her. (Enoch 78:12) 

Philo (a Hellenistic Jewish Philosopher from Alexandria) lived before, during, and after Yeshua (20BCE-50CE), and it stands to reason that he would have also espoused a correct understanding of Biblical calendar and how to observe the cycle of the moon determining the months.  Philo confirms what Enoch wrote in ancient times saying that the New Moon festival takes place when the moon begins to illuminate. As previously stated, the moon becomes illuminated immediately after conjunction. We cannot see it, though, until the sun sets because the moon is obscured by the greater light of the sun. The fact that we cannot see the moon immediately after conjunction, however, does not negate the fact that it has already began a new revolution and is again re-illuminating. Often, the first visible thin almost imperceptible crescent will be seen on the evening of New Moon Day, displaying to the viewer her new light.

“Following the order which we have adopted, we proceed to speak of the third festival, that of the new moon. First of all, because it is the beginning of the month, and the beginning, whether of number or of time, is honorable. Secondly, because at this time there is nothing in the whole of heaven destitute of light. Thirdly, because at that period the more powerful and important body gives a portion of necessary assistance to the less important and weaker body; for, at the time of the new moon, the sun begins to illuminate the moon with a light which is visible to the outward senses, and then she displays her own beauty to the beholders…” (Philo, Special Laws II, Section XXVI (140-142), emphasis supplied)

In the following quotations, Philo plainly states that New Moon Day follows conjunction and that months are reckoned from conjunction to conjunction.

“The third [festival of Yom Teruah] is that which comes after the conjunction, which happens on the day of the new moon in each month.” (Philo, Special Laws II, Section XI (41))

“This is the New Moon, or beginning of the lunar month, namely the period between one conjunction and the next, the length of which has been accurately calculated in the astronomical schools.” (Philo, Special Laws II, Section XXVI (140))

Philo’s statements below indicate that the moon completes its perfect configurations (i.e. waxing half-moon, full moon, waning half-moon, conjunction) at the end of each week. When reckoning the dawn after conjunction as the commencement of New Moon Day, this is most often the case.

Full Moons always at the end of the 14th day and beginning of the 15th:

Enoch and Philo also state that the moon should be full at the end of the second week (i.e. the 15th day of the lunar month).  Enoch 78:6 tells us,

and on the fourteenth day the moons light becomes
full” 

Note: When reckoning the day after conjunction as New Moon Day, the moon will full on the evening after the 14th leading into the 15th of the month.

And the next verse 7 confirms:

 “…On the fifteenth day her light is full…”

Thus the moon is fifteen days old by the time her light is full. 

“For it is said in the Scripture: On the tenth day of this month let each of them take a sheep according to his house; in order that from the tenth, there may be consecrated to the tenth, that is to [Elohim], the sacrifices which have been preserved in the soul, which is illuminated in two portions out of the three, until it is entirely changed in every part, and becomes a heavenly brilliancy like a full moon, at the height of its increase at the end of the second week . . .” (On Mating with the Preliminary Studies, Section XIX, (106))

“And this feast is begun on the fifteenth day of the month, in the middle of the month, on the day on which the moon is full of light, in consequence on the providence of Elohim taking care that there shall be no darkness on that day.” (Philo, Special Laws II, The Fifth Festival, Section XXVIII (155))

More About The Feasts

For Videos explaining the Holy Days please feel free to check out our YouTube Playlist called “Holy Days & Feasts of the Lord” or watch below.

 

We hope this listing of Yah’s Holy Days and additional information helps you get back on His Calendar!
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