The men of the maamad would fast four days of the week, from Monday through Thursday. They would not fast on Friday, because of the honor due the Sabbath; nor on Sunday lest they go from rest and pleasure to toil and fast, and become faint.  On Sunday [they would read]: In the beginning, and Let there be a firmament. On Monday: Let there be a firmament, and Let the waters gather. On Tuesday: Let the waters gather, and Let there be luminaries. On Wednesday: Let there be luminaries, and Let the waters swarm. On Thursday: Let the waters swarm, and Let the earth bring forth. On Friday: Let the earth bring forth, [and] the heaven was completed.  A long portion would be read by two [people] and a short one by one [person] —- at Shacharis and at Musaf. At Minchah, they would enter [the synagogue] and recite [the verses] by heart, like those who read the Shema. On Friday at Minchah they would not enter [the synagogue], because of the honor due the Sabbath.

On any day when Hallel is recited there is no maamad at Shacharis. [Whenever there is] a musaf-sacrifice, there is no [maamad even] at Ne'ilah. [Whenever there is] a wood-offering, there is no [maamad] at Minchah. [This is] R' Akiva's view. Ben Azzai said to him, “R' Yehoshua would learn this way: `[Whenever there is a] musaf-sacrifice, there is no [maamad] at Minchah; [whenever there is] a wood-offering, there is no [maamad] at Ne'ilah.' ” R' Akiva retracted in order to comply with Ben Azzai.