Parking meters in San Francisco will be enforced on Sundays starting January 6, 2013, confirms SF Municipal Transportation Agency spokesperson Paul Rose.

The meters will be in effect from 12 p.m. to 6 p.m. As the SF Chronicle reported today, the SFMTA will also pilot an extension of meter hours in the evening around the Giants ballpark until 10 p.m. starting next spring after SFPark meters are installed in Mission Bay.

Enforcing parking meters on Sundays is expected to reduce the number of drivers circling for parking by increasing turnover during periods of high demand. Parking meter hours in San Francisco basically haven’t changed since 1947, when most businesses weren’t open on Sundays or after 6 p.m., and demand was low.

Today, a car owner can occupy a commercial parking spot for free from Saturday at 6 p.m. until Monday morning, forcing driving customers to cruise around for another available space. Ending the once-a-week parking giveaway is expected to increase turnover for businesses and reduce the congestion, pollution, and noise commonly seen in business districts each Sunday.

Coincidentally, yesterday was the 77th anniversary of the day the country’s first parking meter was installed in Oklahoma City.

The official go-ahead for metered parking on Sundays still requires approval of the citywide fiscal year 2012-2013 budget from the Board of Supervisors, which is expected next Tuesday. The SFMTA budget was approved by the Budget and Finance Committee in May, and initial board approval of the citywide budget is scheduled for today.