Biblical Calendar 2018

Sunset Times

Astronomical Data : Conjunction, Equinox, Crescent New Moon, etc.
Her Majesty’s Nautical Almanac Office
United States Naval Observatory

The main ‘Biblical’ calendars observed by the 7th Day Churches of God (within which there are some variations), and the dates for 2018, are shown below.
When does a biblical year begin?
[1] Hebrew Calendar – Jewish
(Some observe Passover and Pentecost on the Jewish calendar dates.)
The year begins according to a 19-year time cycle.
[2] Hebrew Calendar – Church of God
This is the Worldwide Church of God’s version of the Hebrew Calendar, which its major offshoots continue to observe:
All the annual ‘moedim’ (appointed times) listed in Leviticus 23 are observed, but for one day each only, not two.
Passover is on the 14th, not the 15th.
Pentecost is not 7 weeks from the 2nd day of Passover (Unleavened Bread),
but 7 weeks from the Sunday within the festival to a Sunday. Previously Sivan 6 and then Monday were observed. A few groups broke away in 1974, refusing to accept the change to Sunday. Please see the
Pentecost Study Material for the explanation for a Sunday Pentecost (start p.61).
Rosh HaShanah, which means ‘beginning of the year’, is New Year’s Day in the Hebrew calendar, the general explanation in Judaism being that it is the anniversary of the creation of Adam and Eve. Exodus 12:2 and Deuteronomy 16:1 show that the Biblical year begins with the month of the Abib (Nisan). In order to reconcile the Hebrew Calendar with the Bible, the WCG taught that the Jews observe the 1st of Abib as the beginning of the religious year and the 1st of Tishri as the beginning of the civil year – but this has never been the case. As can be seen from the Hebrew Calendar – Jewish, Rosh Hashanah is a major holiday, but Rosh Chodesh Nisan is simply one of the other 11 ‘new moons’.
The Hebrew calendar year is calculated from the
Molad Emtzai, which in 2018 occurs on Monday, 10th September. None of the postponement rules applies, so the Hebrew calendar year 5779 (2018-2019) begins at sunset on this day.
The
Church of God 7th Day (HQ in Denver) and Church of God 7th Day (Jerusalem) utilize the Hebrew Calendar to calculate the Lord’s Supper, which they observe on the evening of the 14th of Abib (Nisan).
The Denver group does not regard the observance of annual holy days as mandatory, but is happy for its congregations to observe them.
The Church of God 7th Day (Salem) keeps the Lord’s Supper on the evening of the 14th, but observes Biblical Calendar [4] (see doctrinal point no.15 on this link).


Calendars [3]-[6] : the year begins according to the Vernal Equinox, which in 2018 occurs at 18.15 on March 20th (Jerusalem time).
[3] Day of the astronomical new moon (conjunction of sun/moon), nearest to the Vernal Equinox [15.11, March 17th, Jerusalem time].
[4] Day of the appearance of the crescent new moon – visible in the brief period between sunset and moonset – nearest to the Vernal Equinox [evening of 18th March].
[5] Day of the astronomical new moon (conjunction of sun/moon), following the Vernal Equinox [03.57, April 16th, Jerusalem time].
[6] Day of the appearance of the crescent new moon – visible in the brief period between sunset and moonset – following the Vernal Equinox [evening of April 17th].
[7] Day of the appearance of the crescent new moon – visible in the brief period between sunset and moonset – in the month that the wild barley in Israel will be ready for harvesting by the Sunday after Passover (Leviticus 23:10-12).
Probably the same as
[4], but will need to be confirmed next March.
The dates for the 3 annual festivals (Exodus 23:14-16) are printed in 
green, and the 7 annual holy days are in red.

[1]

[2] [3]

[4] [7]

[5]

[6]

New Year’s Day

Mon-Tue
Sep.10-11

Sat.
Mar.17

Mon.
Mar.19

Mon.
Apr.16

Wed.
Apr.18

Passover
(evening before)

Fri.
Mar.30

Sun.
Apr.1

Sun.
Apr.29

Tue.
May.1

Festival of Passover/
Unleavened Bread

Mar.31
-Apr.7

Mar.31-Apr.6

Apr.2-
Apr.8

Apr.30-May.6

May.2-May.8

1st Day of
Unleavened Bread

Sat-Sun
Mar31-Apr1

Sat.
Mar.31

Mon.
Apr.2

Mon.
Apr.30

Wed.
May.2

7th Day of
Unleavened Bread

Fri-Sat
Apr.6-7

Fri.
Apr.6

Sun.
Apr.8

Sun.
May.6

Tues.
May.8

Firstfruits Festival
(Pentecost)

Sun-Mon
May20-21

Sun.
May.20

Sun.
May.20

Sun.
Jun.24

Sun.
Jun.24

Day of
Trumpets

Mon-Tue
Sep.10-11

Mon.
Sep.10

Tues.
Sep.11

Tue.
Oct.9

Thur.
Oct.11

Day of
Atonement

Wed.
Sep.19

Wed.
Sep.19

Thur.
Sep.20

Thur.
Oct.18

Sat.
Oct.20

Festival of
Tabernacles

Sep.24-Sep.30

Sep.24-Sep.30

Sep.25-Oct.1

Oct.23-Oct.29

Oct.25-Oct.31

1st Day of
Tabernacles

Mon-Tue
Sep.24-25

Mon.
Sep.24

Tues.
Sep.25

Tue.
Oct.23

Thur.
Oct.25

Eighth Day

Mon-Tue
Oct.1-2

Mon.
Oct.1

Tues.
Oct.2

Tue.
Oct.30

Thur.
Nov.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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