See separate Halacha Guide for laws pertaining to Tzom Gedalya.
Tachnun is recited until Erev Yom Kippur, together with the long Avinu Malkeinu. When Tachnun is not recited (e.g. Mincha of Erev Shabbos, or when a Chosson or one of the Baalei Habris are present), Avinu Malkeinu is not recited either.
One must use these days to correct his ways and do Teshuvah.
A doubtful Aveirah requires more Teshuvah than a definite one, as it is human nature to discount a doubtful Aveirah and assume that he didn’t really do anything wrong.
One should increase in Torah, Tefillah and Tzedakah. One should be more meticulous in his observance of Mitzvos, even where he is ordinarily accustomed to following the lenient opinion.
The seven days between Rosh Hashana Yom Kippur encompass the seven days of the week. One should utilize each day to do Teshuvah for all the corresponding weekdays of the previous year.
The Rebbe emphasized that Aseres Y’mei Teshuvah is an especially appropriate time for Bochurim to remain in a Yeshivah setting, as opposed to having a break.
If one did not do Hataras Nedarim on Erev Rosh Hashana, he should do so during the Aseres Y’mei Teshuvah.
If one did not do Tashlich on Rosh Hashana, he should do so during the Aseres Y’mei Teshuvah, preferably on the eighth of Tishrei.
Kiddush Levanah is not recited until after Yom Kippur.
