Minn. Stat. § 203B.085
The county auditor's office in each county must be open for acceptance of absentee ballot applications and casting of absentee ballots from 10:00 a.m. to 3:00 p.m. on Saturday and until 5:00 p.m. on Monday immediately preceding a primary, special, or general election. Town clerks' offices must be open for absentee voting from 10:00 a.m. to 12:00 noon on the Saturday before a town general election held in March. The school district clerk, when performing the county auditor's election duties, need not comply with this section.