The Hebrew Calendar is Lunar based.  The New Moon notes the first day of the month.  Occasionally, the "official" calendar deviates
from the actual New Moon.  
HEBREW CALENDAR GREGORIAN CALENDAR
RED INDICATES DATES OF NOTE BLUE INDICATES NEW MOON
NISSAN - 5782  APR 2022
S M T W T F S S M T W T F S
1 APR 1 2
2 3 4 5 6 7 8 3 4 5 6 7 8 9
9 10 11 12 13 14 15 10 11 12 13 14 15 16
16 17 18 19 20 21 22 17 18 19 20 21 22 23
23 24 25 26 27 28 29 24 25 26 27 28 29 30
IYAR -5782  MAY - 2022
S M T W T F S S M T W T F S
1 2 3 4 5 6 7 MAY 1 2 3 4 5 6 7
8 9 10 11 12 13 14 8 9 10 11 12 13 14
15 16 17 18 19 20 21 15 16 17 18 19 20 21
22 23 24 25 26 27 28 22 23 24 25 26 27 28
29 30 29 30
SIVAN - 5782 MAY / JUNE - 2022
S M T W T F S S M T W T 26 S
1 2 3 4 5 31 JUNE 1 2 3 4
6 7 8 9 10 11 12 5 6 7 8 9 10 11
13 14 15 16 17 18 19 12 13 14 15 16 17 18
20 21 22 23 24 25 26 19 20 21 22 23 24 25
27 28 29 30 26 27 28 29
TAMMUZ - 5782 JUNE / JULY - 2022
S M T W T F S S M T W T F S
1 2 3 30 JULY 1 2
4 5 6 7 8 9 10 3 4 5 6 7 8 9
11 12 13 14 15 16 17 10 11 12 13 14 15 16
18 19 20 21 22 23 24 17 18 19 20 21 22 23
25 26 27 28 29 24 25 26 27 28
AV - 5782 JULY / AUG - 2022
S M T W T F S S M T W T F S
1 2 29 30
3 4 5 6 7 8 9 31 AUG 1 2 3 4 5 6
10 11 12 13 14 15 16 7 8 9 10 11 12 13
17 18 19 20 21 22 23 14 15 16 17 18 19 20
24 25 26 27 28 29 30 21 22 23 24 25 26 27
ELUL - 5782 AUG / SEPT - 2022
S M T W T F S S M T W T F S
1 2 3 4 5 6 7 28 29 30 31 SEPT 1 2 3
8 9 10 11 12 13 14 4 5 6 7 8 9 10
15 16 17 18 19 20 21 11 12 13 14 15 16 17
22 23 24 25 26 27 28 18 19 20 21 22 23 24
29 25
TISHRI - 5783 SEPT / OCT - 2022
S M T W T F S S M T W T F S
1 2 3 4 5 6 26 27 28 29 30 OCT 1
7 8 9 10 11 12 13 2 3 4 5 6 7 8
14 15 16 17 18 19 20 9 10 11 12 13 14 15
21 22 23 24 25 26 27 16 17 18 19 20 21 22
28 29 30 23 24 25
HESHVAN - 5783 OCT / NOV - 2022
S M T W T F S S M T W T F S
1 2 3 4 26 27 28 29
5 6 7 8 9 10 11 30 31 NOV 1 2 3 4 5
12 13 14 15 16 17 18 6 7 8 9 10 11 12
19 20 21 22 23 24 25 13 14 15 16 17 18 19
26 27 28 29 30 20 21 22 23 24
KISLEV - 5783 NOV / DEC - 2022
S M T W T F S S M T W T F S
1 2 25 26
3 4 5 6 7 8 9 27 28 29 30 DEC 1 2 3
10 11 12 13 14 15 16 4 5 6 7 8 9 10
17 18 19 20 21 22 23 11 12 13 14 15 16 17
24 25 26 27 28 29 30 18 19 20 21 22 23 24
TEVETH - 5783 DEC / JAN - 2023
S M T W T F S S M T W T F S
1 2 3 4 5 6 7 25 26 27 28 29 30 31
8 9 10 11 12 13 14 JAN 1 2 3 4 5 6 7
15 16 17 18 19 20 21 8 9 10 11 12 13 14
22 23 24 25 26 27 28 15 16 17 18 19 20 21
29 22
SHEBAT - 5783 JAN / FEB - 2023
S M T W T F S S M T W T F S
1 2 3 4 5 6 23 24 25 26 27 28
7 8 9 10 11 12 13 29 30 31 FEB 1 2 3 4
14 15 16 17 18 19 20 5 6 7 8 9 10 11
21 22 23 24 25 26 27 12 13 14 15 16 17 18
28 29 30 19 20 21
ADAR - 5783 FEB / MAR - 2023
S M T W T F S S M T W T F S
1 2 3 4 22 23 24 25
5 6 7 8 9 10 11 26 27 28 MAR 1 2 3 4
12 13 14 15 16 17 18 5 6 7 8 9 10 11
19 20 21 22 23 24 25 12 13 14 15 16 17 18
26 27 28 29 19 20 21 22
Nisan 1 Correct beginning of the year (Exodus 12:1-6)
Nisan 10 Passover Lamb chosen (Exodus 12:3)
Nisan 14 Passover begins at Sundown (Leviticus 23:5)
Nisan 15 The Feast of Unleavened Bread (Leviticus 23:6)
Nisan 16 The first Sunday after Passover is the Day of Firstfruits
and begins the fifty day count for Pentecost  (Leviticus 23:11)
Sivan 6 Shavuot - Pentecost (Leviticus 23:16)
Tammuz 17 Traditional anniversary of destruction of the walls of Jerusalem (twice)
Av 9 Traditional anniversary of destruction of the Temple (twice)
Tishri 1 Rosh HaShanah - Feast of Trumpets (Leviticus 23:23)
Tishri 10 Yom Kippur - Day of Atonement (Leviticus 23:26)
Tishri 15 Sukkot - Feast of Booths, Feast of Harvest (Leviticus 23:33)
Kislev 25 Chanukah - Festival of Lights (see History of Maccabean Revolt)
Adar 14 & 15 Purim - see Book of Esther