The 12th of Tishrei is the yahrtzeit (anniversary of the passing) of Rabbi...
Tachnun (confession of sins) and similar prayers are omitted.
Ha'azinu, 6th Portion (Deuteronomy...
Chapters 66-68
Iggeret HaKodesh, end of Epistle 20
Dawn (Alot Hashachar)
Earliest Tallit and Tefillin (Misheyakir)
Sunrise (Hanetz Hachamah)
Latest Shema
Latest Shacharit
Midday (Chatzot Hayom)
Candle Lighting
Sunset (Shkiah)
Nightfall (Tzeit Hakochavim)
Midnight (Chatzot HaLailah)