The Hebrew Calendar is Lunar based.  The New Moon notes the first day of the month.
HEBREW CALENDAR GREGORIAN CALENDAR
RED INDICATES DATES OF NOTE BLUE INDICATES NEW MOON
TISHRI - 5767 OCT - 2006
S M T W T F S S M T W T F S
1 22 Sep 23
2 3 4 5 6 7 8 24 25 26 27 28 29 30
9 10 11 12 13 14 15 Oct 1 2 3 4 5 6 7
16 17 18 19 20 21 22 8 9 10 11 12 13 14
23 24 25 26 27 28 29 15 16 17 18 19 20 21
30 22
HESHVAN - 5767 NOV - 2006
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 Nov 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
KISLEV - 5767 DEC - 2006
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 29 30 Dec 1 2
12 13 14 15 16 17 18 3 4 5 6 7 8 9
19 20 21 22 23 24 25 10 11 12 13 14 15 16
26 27 28 29 30 17 18 19 20 21
TEVETH - 5767 JAN - 2007
S M T W T F S S M T W T F S
1 2 22 23
3 4 5 6 7 8 9 24 25 26 27 28 29 30
10 11 12 13 14 15 16 31 Jan 1 2 3 4 5 6
17 18 19 20 21 22 23 7 8 9 10 11 12 13
24 25 26 27 28 29 14 15 16 17 18 19
SHEBAT - 5767 FEB - 2007
S M T W T F S S M T W T F S
1 20
2 3 4 5 6 7 8 21 22 23 24 25 26 27
9 10 11 12 13 14 15 28 29 30 31 FEB 1 2 3
16 17 18 19 20 21 22 4 5 6 7 8 9 10
23 24 25 26 27 28 29 11 12 13 14 15 16 17
30 18
ADAR - 5767 MAR - 2007
S M T W T F S S M T W T F S
1 2 3 4 5 6 19 20 21 22 23 24
7 8 9 10 11 12 13 25 26 27 28 MAR 1 2 3
14 15 16 17 18 19 20 4 5 6 7 8 9 10
21 22 23 24 25 26 27 11 12 13 14 15 16 17
28 29 18 19
NISAN - 5767 APR - 2007
S M T W T F S S M T W T F S
1 2 3 4 5 20 21 22 23 24
6 7 8 9 10 11 12 25 26 27 28 29 30 31
13 14 15 16 17 18 19 APR 1 2 3 4 5 6 7
20 21 22 23 24 25 26 8 9 10 11 12 13 14
27 28 29 30 15 16 17 18
IYAR - 5767 MAY - 2007
S M T W T F S S M T W T F S
1 2 3 19 20 21
4 5 6 7 8 9 10 22 23 24 25 26 27 28
11 12 13 14 15 16 17 29 30 MAY 1 2 3 4 5
18 19 20 21 22 23 24 6 7 8 9 10 11 12
25 26 27 28 29 13 14 15 16 17
SIVAN - 5767 JUNE - 2007
S M T W T F S S M T W T F S
1 2 18 19
3 4 5 6 7 8 9 20 21 22 23 24 25 26
10 11 12 13 14 15 16 27 28 29 30 31 JUNE 1 2
17 18 19 20 21 22 23 3 4 5 6 7 8 9
24 25 26 27 28 29 30 10 11 12 13 14 15 16
TAMMUZ - 5767 JULY - 2007
S M T W T F S S M T W T F S
1 2 3 4 5 6 7 17 18 19 20 21 22 23
8 9 10 11 12 13 14 24 25 26 27 28 29 30
15 16 17 18 19 20 21 JULY 1 2 3 4 5 6 7
22 23 24 25 26 27 28 8 9 10 11 12 13 14
29 15
AV - 5767 AUG - 2007
S M T W T F S S M T W T F S
1 2 3 4 5 6 16 17 18 19 20 21
7 8 9 10 11 12 13 22 23 24 25 26 27 28
14 15 16 17 18 19 20 29 30 31 AUG 1 2 3 4
21 22 23 24 25 26 27 5 6 7 8 9 10 11
28 29 30 12 13 14
ELUL - 5767 SEPT - 2007
S M T W T F S S M T W T F S
1 2 3 4 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 30 31 SEPT 1
19 20 21 22 23 24 25 2 3 4 5 6 7 8
26 27 28 29 9 10 11 12
Tishri 1 Rosh HaShanah - Beginning of Secular Year
Tishri 10 Yom Kippur - Day of Atonement
Tishri 15 Sukkot - Feast of Booths, Feast of Harvest
Kislev 25 Chanukah - Festival of Lights
Adar 14 & 15 Purim - see Book of Esther
Nisan 10 Passover Lamb chosen
Nisan 15 Passover and Feast of Unleavened Bread (7 days)
The first Sunday after Passover is Feast of Firstfruits
Sivan 10 Shavuot - Pentecost
Tammuz 17 Anniversary of destruction of the walls of Jerusalem (twice)
Av 9 Anniversary of destruction of the Temple (twice)