Contact: Mark Church, Assessor-County Clerk-RecorderAlternate: Jim Irizarry, Assistant Assessor-County Clerk-Recorder (Redwood City, CA) The San Mateo County Clerk's Office is announcing special office hours for couples wishing to get married on Valentine's Day, which this year falls on Sunday, February 14, 2016. The San Mateo County Clerk's Office will open its doors at 9 am and close at 2 pm on Valentine's Day.