Interfaith Calendar & Holy Days
The sacred rhythms of the year — how the world's traditions mark time with prayer, fasting, feasting, and remembrance.
Traditions
Holy Days Calendar
Traditions
Sacred Calendar — Holy Days Across Traditions
Traditions
Christianity
6 observancesChristmas
December 25 (Western); January 7 (Eastern Orthodox)
Celebrates the Incarnation — the birth of Jesus Christ, when Christians believe God entered human history as a child born in humble circumstances. It is the fulfillment of messianic prophecy and the beginning of the redemption narrative.
Advent preparation (four weeks of anticipation), midnight Mass or candlelight services, nativity scenes, hymns and carols, gift-giving as a reflection of God's gift to humanity, acts of charity toward the poor.
Easter
First Sunday after the first full moon of spring (March/April)
The most sacred day in the Christian calendar — the celebration of Jesus Christ's resurrection from the dead. It is the foundation of Christian faith: the belief that death has been conquered and new life is offered to all humanity.
Overlapping Seasons
Throughout the year, traditions converge on shared themes — renewal in spring, teaching in summer, gratitude in autumn, light in winter. These overlapping seasons reveal the common spiritual impulses that run beneath the surface of distinct traditions.
Spring — Renewal, Liberation & Rebirth
February - April
As winter gives way to spring, traditions across the world celebrate themes of liberation, purification, and new life. Easter proclaims resurrection; Passover celebrates freedom from bondage; Holi rejoices in the triumph of good over evil; Ramadan calls for inner purification. These parallel observances suggest a deep human resonance between the renewal of the earth and the renewal of the spirit.
Summer — Teaching, Pilgrimage & Community
May - July
The long days of summer host festivals centered on teaching and community formation. Pentecost marks the birth of the Church; Shavuot celebrates the giving of Torah; Asalha Puja commemorates the Buddha's first sermon. Pioneer Day honors the founding of a community through sacrifice. The warmth of the season mirrors the warmth of traditions gathering to hear foundational teachings.