Los Altos Village Association Valentine’s Stroll, 5-8 p.m. in downtown Los Altos. Information: downtownlosaltos.org.
Mountain View Chamber of Commerce Celebration of Leaders, 5:30 p.m. at the Computer History Museum, 1401 N. Shoreline Blvd. Information: chambermv.org.
Los Altos Community Foundation 2018 Gardner Awards, 5:30 p.m. at the University Club, 3277 Miranda Ave., Palo Alto. Information: losaltoscf.org.
Run for Zimbabwe Orphans & Fair, noon to 4 p.m. at St. Joseph School, 1120 Miramonte Ave., Mountain View. Information: zimbabweparaguay.net.
Los Altos Hills Earth Day event, 1-4 p.m. at Westwind Community Barn, 27210 Altamont Road. Information: losaltoshills.ca.gov.