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Prague · 28 Cheshvan 5787

Shabbat this week · 16:02–17:11

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Fast days

Seventeenth of Tammuzשִׁבְעָה עָשָׂר בְּתַמּוּז

1 day – from dawn until nightfall · 17 Tammuz (if it falls on Shabbat, it is postponed to 18 Tammuz)

  • History
  • Halakhah
  • Minhag
  • Folk custom
  • Modern practice
  • Interpretation
Transliteration
Shiva Asar B'Tammuz
Pronunciation
šiv-A a-SAR be-ta-MUZ
Duration
1 day – from dawn until nightfall
Awaiting expert review

In 60 seconds

The Seventeenth of Tammuz recalls the breaching of the walls of Jerusalem before the destruction of the Second Temple. The Mishnah assigns further misfortunes to this day: Moses breaking the Tablets of the Covenant, the cessation of the daily offering, the burning of a Torah scroll and the setting up of an idol in the Temple. The day opens "the three weeks" (bein ha-metzarim), a period of mourning that culminates on Tisha B'Av. It is a minor fast from dawn until nightfall; in traditional communities no weddings are held from this day on and music is limited.

Next date

from Thu, 22/07/2027

(17 Tamuz)

until Thu, 22/07/2027

All dates and times

When

  1. Begins

    Thursday, 22 July 2027, at dawn (02:49)

    Ends

    Thursday, 22 July 2027, after nightfall (22:01)

    1 day

  2. Begins

    Tuesday, 11 July 2028, at dawn (02:20)

    Ends

    Tuesday, 11 July 2028, after nightfall (22:15)

    1 day

  3. Begins

    Sunday, 1 July 2029, at dawn (01:52)

    Ends

    Sunday, 1 July 2029, after nightfall (22:23)

    1 day

Times for Prague · Diaspora

History and origins

History

According to the Mishnah, five calamities occurred on 17 Tammuz: the Tablets of the Covenant were broken, the daily offering (tamid) ceased, the walls of the city were breached, Apostomos burned the Torah and an idol was set up in the Temple.1

History⁂ To verify

The Bible states that during the Babylonian siege the walls were breached on the 9th day of the fourth month. The Talmud and later tradition relate 17 Tammuz to the breaching of the walls in the time of the Second Temple (70 CE); the Jerusalem Talmud also offers another explanation of the discrepancy.2,3,4

Religious meaning

Interpretation

The Talmud identifies "the fast of the fourth month" in Zechariah with 17 Tammuz.5,6

Interpretation⁂ To verify

According to traditional chronology, the breaking of the Tablets of the Covenant after the golden calf took place on 17 Tammuz (40 days after the giving of the Torah). The day thus links national catastrophe with spiritual failure.7

Core traditions

MinhagAshkenazimSephardim

The three weeks begin (bein ha-metzarim, "between the straits", after Lamentations 1:3). In Ashkenazi practice, from 17 Tammuz no weddings are held, hair is not cut and music is not listened to; Sephardi practice is more lenient on some points.8,9

How it is observed

Halakhah⁂ To verify

A minor fast from dawn until nightfall. The sick and pregnant or nursing women usually do not fast; the local rabbi determines the details.10

Prayers and blessings

Minhag

Anenu, selichot, Avinu Malkeinu and the afternoon reading of Exodus 32:11–14 and 34:1–10 with the haftarah Isaiah 55:6–56:8 (Ashkenazi rite).11,12

Symbols and objects

Interpretation

The day has no objects of its own. In tradition, the broken Tablets of the Covenant and the breached wall become the images of the day.

Traditional foods

Folk custom

There are no established special dishes.

Differences between communities

Modern practice

In Orthodox communities the three weeks are kept strictly; Conservative and Reform communities mark the day in various ways, often only liturgically or not at all.

In the Czech lands

MinhagCzech lands⁂ To verify

No particular customs are documented for the Czech setting.

For children

Modern practice

On this day Jews remember how enemies broke through the walls of Jerusalem. Three sad weeks begin, when there are no weddings or big celebrations.

FAQ

What are the three weeks?

The period from 17 Tammuz to 9 Av, when traditional communities limit joyful events as a sign of mourning over the destruction of the Temple.

Why are no weddings held?

A wedding is the height of joy, which is out of place in a time of mourning. The extent of the restrictions differs between Ashkenazi and Sephardi practice.

What if 17 Tammuz falls on Shabbat?

The fast is postponed to Sunday, 18 Tammuz.

Sources

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