Hot answers tagged tachanun
[Collected from the writings of Ha-Rav Aviner] Tachanun on Erev Yom Ha-Atzmaut It is proper to recite Tachanun at Minchah of Erev Yom Ha-Atzamaut, as the Chief Rabbinate of Israel has decreed this day "Remembrance Day for the Fallen Soldiers of Tzahal," which is a day of mourning. Iturei Cohanim #97, Shut She'eilat Shlomo 3:147, Sichot Ha-Rav Tzvi ...
In the respective inside back covers of the popular sidurim תפלת כל פה (where the chart is in Hebrew) and תהלת ה׳ (where it's in English and according to Chabad-Lubavitch practice). ArtScroll sidurim have the same info on the pages of "Baruch sheamar" and "Yishtabach", but not in chart form.
The Spanish-Portuguese Synagogue (Cong. Shearith Israel) omits "tahanunim" and recites special psalms. The current rabbi is Meir Soloveichik. Source.
The Artscroll Yitzchak Yair siddur (the all-Hebrew Ashkenaz one) states that if 28 Elul is a weekday, tachanun is said even by Mincha, and on Shabbat, tzikatcha is said. You are correct that normally, if tachanun is not said by Shacharit, it is omitted the previous afternoon as well. However, Erev Rosh Hashanah and Erev Yom Kippur (and perhaps Pesach Sheni) ...
R Reuven Slater wrote a very interesting book on the background and explanation of Tachanun. He answers your question as such Generally speaking we not recite Tachanun on days that reflect festivity We don't say Tachanun on Tisha b'Av as it will one day be a day of great joy marking the arrival of the Messianic area - others say because we are like aveilim ...
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