The Hebrew Week (shavu‘a) begins on (Rishon) Sunday and ends on (Shabbat) Saturday:

 Since the Hebrew day (yom) begins at sundown, you must remember that a Hebrew holiday actually begins on the night before the day listed on a Hebrew calendar.   

Genesis 1:5...And there was evening and there was morning, the first day.

Holiday Name

 Secular Year

2015-16

2016-17

2017-18

2018-19

Jewish Year

Hebrew Date

5776

 5777

 5778

5779

Rosh Hashanah

1-2 Tishrei

Sep. 14-15

 Oct. 3-4

 Sep. 21-22

Sep. 09-11

Tzom Gedaliah

 3 Tishrei

Sep. 16

Oct. 5 

Sep. 24 

Sep. 12

Yom Kippur

10 Tishrei

Sep. 23

Oct. 12 

 Sep. 30

Sep. 18

Sukkot

15-20 Tishrei

Sep. 28-Oct. 4

Oct. 17-23 

Oct. 5-11 

Sep. 23-30

Hoshanah Rabbah

21 Tishrei

Oct. 4

 Oct. 23

Oct. 11 

Sep. 29-30

Shemini Atzeret

 22 Tishrei

Oct. 5

 Oct. 24

Oct. 12 

Sep. 30

Simchat Torah

23 Tishrei

Oct. 6

Oct. 25 

 Oct. 13

Oct. 1

Hanukkah

25 Kislev-2 Tevet

Dec. 7-14

 Dec. 25- Jan.1

Dec. 13-20 

Dec. 2-10

Asarah be-Tevet

 10 Tevet

Dec. 22

Jan. 8 

Dec. 28 

Dec. 10

Tu Bishvat

15 Shevat

Jan. 25

 Feb. 11

 Jan. 31

Jan. 30

Ta'anit (Fast of) Esther

13 Adar

Mar. 23

March 9 

Feb. 28 

Feb. 28

Purim

15 Adar

Mar. 24

March 12 

Mar. 1 

March. 20

Passover

15-21 Nisan

Apr. 23-30

April 11-18 

March 31- Apr. 7 

April. 19-27

Yom Hashoah

27 Nisan

May 5

 April 23

Apr. 12 

May. 1

Yom Hazikaron

4 Iyar

May 11

May 1 

Apr.18 

May. 7

Yom Ha'atzmaut

5 Iyar

May 12

May 2 

Apr. 19 

May. 8

Lag Ba'omer

18 Iyar

May 26

 May 14

May 3 

May. 22

Yom Yerushalayim

28 Iyar

June 5

 May 24

 May 13

June. 1

Shavuot

6-7 Sivan

Jun. 12-13

 May 31-June 1

May 20-21 

June. 8-10

Tzom Shiva Asar B'Tammuz

17 Tammuz

Jul. 24

July 11 

 July 1

June. 21

Tisha B'Av

9 Av

Aug. 14

 Aug. 1

July 22 

Aug. 10