The 60th Annual National Day of Prayer will take place May 5. Millions will unite in prayer at thousands of events from coast to coast. Mariners Church will hold two sessions from 7-8 a.m. and noon to 1 p.m. in Irvine. Costa Mesa will hold a session from noon to 1 p.m. by the City Hall flag pole. Other Orange County events will be listed on the National Day of Prayer website.