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Some communities have a custom of public reading, whereby on each Shabbat afternoon, the whole of the mishmarah for the following Shabbat is read aloud. In others, individuals use it as a basis for private study. The usual form of the cycle is set out in the table below.
This cycle is unrelated to that for Chok l'Yisrael, which is a study cycle based on the works of Hayyim ben Joseph Vital and revised by Chaim Joseph David Azulai. This too is often published in book form and is widely popular among Near and Middle Eastern Jews. Differences between the two are:
The Seder ha-Mishmarah does not include Targum or commentaries on the Torah portion; Chok l'Yisrael includes both;
Chok l'Yisrael does not include the whole of Nevi'im, Ketuvim or the Mishnah, and does not present the excerpts in a continuous order through the year;
Chok l'Yisrael also includes excerpts from the Talmud, the Zohar and works of Jewish law and morality;
Chok l'Yisrael is designed for daily rather than weekly reading.
Other uses
In Mishnaic Hebrewmishmarah (or mishmeret) means a "watch", that is to say a division of the night (usually one-third). In Temple times, a mishmar (or mishmarah) also referred to a group of priests whose turn it was to officiate.
In addition to the study cycle described above, the term mishmarah is used for a nocturnal prayer or study session preceding a celebration such as a wedding or a Brit milah or a festival such as Hoshana Rabba or following a death. This usage was derived either from the above meaning as a watch in the night or from the practice of watching over a corpse. However, by folk etymology the word is sometimes interpreted as a portmanteau of "Mishnah" and "Gemara", to refer to the texts studied.