Shoppers and others who carpool to eight downtown parking garages in San Francisco will get free short-term parking, starting today until Dec. 27.

Under the Holiday Carpool Parking program, the city-owned garages are offering one hour free parking from 10 a.m. to 6 p.m. if there are three occupants in the vehicle and two hours free parking with four or more occupants.

Garages participating seven days a week are located at 123 O’Farrell St.; Fifth and Mission streets; Sutter-Stockton Garage; 333 Post St.; 2055 Lombard St.; Mission-Bartlett, 3255 21st St./90 Bartlett St.; and 766 Vallejo St. The Civic Center garage at 355 McAllister St. is participating in the program on Saturdays and Sundays only.

Information and maps are available at www.sfmta.com.