[Avodah] birchat hachamah

[Eli Turkel]

856. L'Chatchila the beracha should be said as early as possible after
Netz Hachama (sunrise - NYC 6:28 am) to fulfill the rule of "Zrizin
Makdimin L'Mitzvos" (the diligent hurry to fulfill their Mitzvah
obligations). The minhag of The Chazon Ish and The Steipler (and many
others) was to daven Shachris K'vasikin, and then the congregation
would go outside and say the beracha (B'rov Am - with a large
multitude) after Kaddish following U'va L'tziyon, (before Aleinu and
the Yom). Shulchan Aruch 229 see Shaarei Tshuva 3, Kitzur Shulchan
Aruch 60:7, R' Yechiel Michel Tikutchinsky in Tekufas Hachama
U'birchasa, Orchos Rabbeinu 1:pg95

-- 
Eli Turkel