Lunar Months of the Gregorian Easter Cycle 2200-2299
Civil calendar date of the first day of the lunar month.  This table is valid for the years 2200-2299.

 
 
lunar month:
1
2
3
4
5
6
7
8
9
10
11
12
13
 
 
 
30 days
29 days (in some years, 30)
30 days
29 days
30 days
29 days
30 days
29 days
30 days
29 days
30 days
29 days (in year 2299, 30 days)
30 days (in 19th year, 29)
year of Gregorian cycle
year of Jewish cycle
epact
 
 
 
 
 
 
 
 
 
 
 
 
 
1
17
28
 3-Jan
 2-Feb
 3-Mar
 2-Apr
1-May
31-May
29-Jun
29-Jul
27-Aug
26-Sep
25-Oct
24-Nov
 
2
18
9
23-Dec
22-Jan
20-Feb
22-Mar
20-Apr
20-May
18-Jun
18-Jul
16-Aug
15-Sep
14-Oct
13-Nov
 
3
19
20
12-Dec
11-Jan
 9-Feb
11-Mar
 9-Apr
 9-May
 7-Jun
 7-Jul
 5-Aug
 4-Sep
 3-Oct
 2-Nov
1-Dec
4
1
1
31-Dec
30-Jan
28-Feb
30-Mar
28-Apr
28-May
26-Jun
26-Jul
24-Aug
23-Sep
22-Oct
21-Nov
 
5
2
12
20-Dec
19-Jan
17-Feb
19-Mar
17-Apr
17-May
15-Jun
15-Jul
13-Aug
12-Sep
11-Oct
 10-Nov
 
6
3
23
 9-Dec
 8-Jan
 6-Feb
 8-Mar
 6-Apr
 6-May
 4-Jun
 4-Jul
 2-Aug
1-Sep
30-Sep
30-Oct
28-Nov
7
4
4
28-Dec
27-Jan
25-Feb
27-Mar
25-Apr
25-May
23-Jun
23-Jul
21-Aug
20-Sep
19-Oct
18-Nov
 
8
5
15
17-Dec
16-Jan
14-Feb
16-Mar
14-Apr
14-May
12-Jun
12-Jul
 10-Aug
 9-Sep
 8-Oct
 7-Nov
 6-Dec
9
6
26
 5-Jan
 4-Feb
 5-Mar
 4-Apr
 3-May
 2-Jun
1-Jul
31-Jul
29-Aug
28-Sep
27-Oct
26-Nov
 
10
7
7
25-Dec
24-Jan
22-Feb
24-Mar
22-Apr
22-May
20-Jun
20-Jul
18-Aug
17-Sep
16-Oct
15-Nov
 
11
8
18
14-Dec
13-Jan
11-Feb
13-Mar
11-Apr
11-May
 9-Jun
 9-Jul
 7-Aug
 6-Sep
 5-Oct
 4-Nov
 3-Dec
12
9
29
 2-Jan
 1-Feb
 2-Mar
 1-Apr
30-Apr
30-May
28-Jun
28-Jul
26-Aug
25-Sep
24-Oct
23-Nov
 
13
10
10
22-Dec
21-Jan
19-Feb
21-Mar
19-Apr
19-May
17-Jun
17-Jul
15-Aug
14-Sep
13-Oct
12-Nov
 
14
11
21
11-Dec
10-Jan
 8-Feb
10-Mar
 8-Apr
 8-May
 6-Jun
 6-Jul
 4-Aug
 3-Sep
 2-Oct
 1-Nov
30-Nov
15
12
2
30-Dec
29-Jan
27-Feb
29-Mar
27-Apr
27-May
25-Jun
25-Jul
23-Aug
22-Sep
21-Oct
20-Nov
 
16
13
13
19-Dec
18-Jan
16-Feb
18-Mar
16-Apr
16-May
14-Jun
14-Jul
12-Aug
11-Sep
10-Oct
 9-Nov
 
17
14
24
 8-Dec
 7-Jan
 5-Feb
 7-Mar
 5-Apr
 5-May
 3-Jun
 3-Jul
 1-Aug
31-Aug
29-Sep
29-Oct
27-Nov
18
15
5
27-Dec
26-Jan
24-Feb
26-Mar
24-Apr
24-May
22-Jun
22-Jul
20-Aug
19-Sep
18-Oct
17-Nov
 
19
16
16
16-Dec
15-Jan
13-Feb
15-Mar
13-Apr
13-May
11-Jun
11-Jul
 9-Aug
 8-Sep
 7-Oct
 6-Nov
 5-Dec



 
 
 
 
 
 
 
 
 

How to use this table:

The year:

The Gregorian lunar almanac is a 19-year cycle which assigns an age of the moon to every day in the 19-year period.

Year one of the Gregorian cycle is any year in which the year's number is divisible by 19 without remainder.  The year 2204, for example, is year one of its cycle:  The table shows that Lunar Year 2204 begins on January 3nd, 2204.  (More precisely, at sunset on January 2nd, 2204).   Successive years of the cycle follow in order.  The year 2205 is year two:  Lunar Year 2205 begins on December 23rd, 2204  (Or more precisely, at sunset on December 22nd, 2204).   The year 2206 is year 3:  Lunar Year 2206 begins on December 12th, 2205.
 

The month:

Each year contains 12 or 13 lunar months.  Each lunar month has 29 or 30 days.

The table shows the first day of each lunar month in the Gregorian Easter cycle.  The moon is considered to be one day old on the first day of the lunar month.  This day is also called "new moon" because it corresponds, on the average, to the day on which the new waxing  crescent moon theoretically first becomes visible.

If February has 29 days, an extra day is added to month 2, making it a month of 30 days, rather than 29 days.  Month 3 then begins a day later than the date listed in the table if the date listed is a date prior to February 29th.  (This is not the only  possible way of accounting for a 29-day February, but it is the easiest.)

The last lunar month of the 19th year of the cycle has 29 days.

In the year 2299, which is the first year of the 19-year cycle and the last year in which this table is valid, an extra day is added to month 12, making it a month of 30 days, rather than 29 days.
 

The day:

Because this is a Babylonian-style lunar calendar, the day begins on sunset of the day prior to the day listed in the table.  The table shows that the first day of the first moon of year 1 of the cycle corresponds to January 2nd.  This means that the first day  of the lunar month begins at sunset on January 1st and ends at sunset on January 2nd, when the second day of the lunar month begins.
 

The Easter festival falls in the first lunar month of the year to begin on or after March 8th.  In the years 2200-2299 this is usually the 4th moon, though in year 17 of the 19-year cycle it is the 5th moon.  Easter is always the third Sunday in its lunar month.

In the Earth's Northern hemisphere, the Spring season of year 4 of the Gregorian cycle coincides with the Spring season of year 1 of the Jewish 19-year cycle, with other years of each cycle following in succession.  The Feast of Unleavened Bread for the year 5982 (year 16 of the Jewish cycle) occurs in the Northern hemisphere's springtime in the Gregorian year 2222 (year 19 of the Gregorian cycle.)

Due to differences in the time of year at which the Christian and Jewish cycles add the 13th moon of 13-moon years, the Jewish Feast of Unleavened Bread in the years 2200-2299 will, in years 3, 6, 11, and 14 of the Gregorian cycle (corresponding respectively to years 19, 3, 8, and 11 of the Jewish cycle), fall in the lunar month next after the lunar month in which the Christian Easter festival falls.  In all other years of the cycle, Easter and the Feast of Unleavened Bread fall in the same lunar month.  But though the lunar month in which the Jewish Feast of Unleavened Bread falls can be identified using the table above, the precise dates of the Feast of Unleavened Bread cannot be determined accurately from the table.  This is because the Gregorian and Jewish calendars use different rules for computing the moon's age.



 

References:

Explanatory Supplement to the Ephemeris and the American Ephemeris and Nautical Almanac, H. M. Stationery Office, London, 1966, fourth revised printing, 1977.

Alexander Philip, The Calendar: Its History, Structure and Improvement, University Press, Cambridge, 1921.

L. A. Resnikoff, "Jewish Calendar Calculations I", Scripta Mathematica 9, 191(1943); "Jewish Calendar Calculations II", Scripta Mathematica 9, 274(1943).