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St. Denis Catholic Church

Catholic Church in Diamond Bar, CA

About Our Parish Humble Beginnings Established on May 10, 1971, by the late Cardinal Timothy Manning, then archbishop of Los Angeles, St. Denis Church has been a vibrant and inspirational center of worship and spirituality in the eastern Los Angeles County of the city of Diamond Bar. Cardinal Manning appointed Fr. D…

Parish Information

Mass Times at St. Denis Catholic Church

  • Sunday 6:15 AM
  • Sunday 7:30 AM
  • Sunday 9:00 AM
  • Sunday 10:30 AM
  • Sunday 12:00 PM
  • Sunday 1:30 PM
  • Sunday 5:30 PM
  • Monday 6:30 AM
  • Monday 8:00 AM
  • Monday 6:30 PM
  • Tuesday 6:30 AM
  • Tuesday 8:00 AM
  • Tuesday 6:30 PM
  • Wednesday 6:30 AM
  • Wednesday 8:00 AM
  • Wednesday 6:30 PM
  • Thursday 6:30 AM
  • Thursday 8:00 AM
  • Thursday 6:30 PM
  • Friday 6:30 AM
  • Friday 8:00 AM
  • Friday 6:30 PM
  • Saturday 7:30 AM
  • Saturday 5:30 PM Vigil

Confession Times

  • Monday 8:30 AM - 8:45 AM
  • Tuesday 8:30 AM - 8:45 AM
  • Wednesday 8:30 AM - 8:45 AM
  • Thursday 8:30 AM - 8:45 AM
  • Friday 8:30 AM - 8:45 AM
  • Friday 5:00 PM - 6:00 PM
  • Saturday 8:30 AM - 8:45 AM Or later if necessary, after the 8:00 am Mass
  • Saturday 4:00 PM - 5:00 PM

Eucharistic Adoration

  • Monday 7:30 AM - 9:00 PM In the chapel
  • Friday 8:30 AM - 9:30 AM Silent Holy Hour, in the church
  • Friday 8:00 PM - 9:00 PM Holy Hour with music, in the church

Schedules can change. Mass times last verified 2026-04-19. Please call the parish to confirm before you go, especially on holy days.

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