See a comprehensive listing at www.honoluluadvertiser.com.

HAIB EARTH DAY PROGRAM, with the film "Reluctant Saint: Francis of Assisi," 3-5:30 p.m. April 19, Chaminade University's Ching Conference Center, Eiben Hall, second floor; free; psponsel@chaminade.edu, 735-4822.

VOICES IN HARMONY 2008, Dharma School Teachers of Oahu's second annual songfest, 9 a.m.-12 p.m. April 20, 'Aiea Hongwanji Mission; free; 622-4320.

"THE VOICE OF GOD," a workshop by ECK Workshop Services, 10-11 a.m. April 20, Kaimuki Community Park's main hall; free; 735-7719.

"THE UTILITY OF BEING A FOOL," a lecture by Swami Bhaskarananda, author and senior monk of the Ramakrishna Order, 11 a.m. April 20, YWCA, 1040 Richards St.; free; 734-1760.

MISSION CELEBRATION, with food, learning and fellowship, noon April 20, Calvary by the Sea Lutheran Church; free; 377-5477.

Send announcements, with contact name and phone number, to: Faith Calendar, The Advertiser, P.O. Box 3110, Honolulu, HI 96802; faith@honoluluadvertiser.com, with "Faith Cal" in the subject line; or fax 525-8055.