The Liturgy of the Hours

The General Instruction on The Liturgy of the Hours (I.3.10–11a) explains its purpose as follows:

Consecration of Time
10. Christ taught us: "You must pray at all times and not lose heart" (Lk 18:1). The Church has been faithful in obeying this instruction; it never ceases to offer prayer and makes this exhortation its own: "Through him (Jesus) let us offer to God an unceasing sacrifice of praise" (Heb 15:15). The Church fulfills this precept not only by celebrating the eucharist but in other ways also, especially through the liturgy of the hours. By ancient Christian tradition what distinguishes the liturgy of the hours from other liturgical services is that it consecrates to God the whole cycle of the day and the night. [56]
11. The purpose of the liturgy of the hours is to sanctify the day and the whole range of human activity.

Portions of the Liturgy of the Hours are available to to the public through the Liturgy of the Hours Apostolate. The documents on that site follow the liturgical calendar and Liturgy of the Hours texts approved by the United States Conference of Catholic Bishops. Our class has a four-month-long site license to the entire set of texts, available by going to http://www.ebreviary.com/ and then clicking one of the links under "Subscription Service" (toward the bottom of the page). The username and password information for our license are available on the course Blackboard.