This specific calendar governs the religious life of the Russian Orthodox Church, dictating the dates of feasts, fasts, and other observances. It blends the Julian calendar with unique traditions, resulting in a distinct yearly cycle of worship. For instance, Christmas is celebrated on January 7th according to this system.
The system provides a framework for spiritual life, guiding believers through the liturgical year. It connects contemporary believers to centuries of tradition and shared experience, fostering a sense of continuity and community. Historical development of this calendar reflects the evolution of the Church itself, including its adaptation to changing social and political landscapes.