Early voting starts Saturday in Suffolk County for the June primary. Here's what you need to know.

Early voting begins on Saturday for a dozen primary races in Suffolk County for elected positions like town supervisor and county legislator.

Voters registered as Republican, Conservative or Working Families can cast ballots to determine which candidate will be on the November general election ballot.

Early voting will be held for nine days ahead of primary day on June 24.

Here's what to know about early voting ahead of the June primary:

How many primary races are there?

There are 12 races for positions across the Republican, Conservative and Working Families parties in Suffolk County. There are no Democratic primaries.

Six races are centered in Huntington where Supervisor Ed Smyth faces challenges from Dominic Spada on the Conservative line and Brooke Lupinacci on the Republican line. An additional supervisor primary will be contested for the Working Families nod.

Four Republican candidates and four Working Families candidates are seeking two spots each for Huntington town council. And two Working Families candidates are vying for Huntington Superintendent of Highways.

Additional races will be held for Republican council member in Smithtown and Working Families town clerk and council member in Southampton.

There are no Nassau County primaries.

In the Suffolk County Legislature, candidates are seeking the Republican nod in two districts where the incumbents are term limited. One of those legislators, Rob Trotta (R-Fort Salonga), is running for Smithtown Supervisor against Republican incumbent Edward Wehrheim in District 13, which includes parts of Smithtown and Huntington. The other race pits two candidates seeking the Republican nod to replace Kevin McCaffrey of District 14 and the body's presiding officer, which includes parts of Babylon Town.

Four additional primary races will be held for Republican County Committee positions for election districts in Brookhaven and Islip.

When is early voting?

Early voting begins Saturday and continues each day through Sunday, June 22. Hours vary by day.

• Saturday and Sunday 10 a.m. to 6 p.m.
• Monday 10 a.m. to 6 p.m.
• Tuesday 7 a.m. to 3 p.m.
• Wednesday 7 a.m. to 3 p.m.
• Thursday Noon to 8 p.m.
• Friday, June 20 Noon to 8 p.m.
• Saturday, June 21 10 a.m. to 6 p.m.
• Sunday, June 22 10 a.m. to 6 p.m.

Where are early voting polling locations?

Suffolk County typically offers 28 early voting locations throughout the county, but only a handful of those are available for the June 24 primary based on where races are located. Registered voters can cast a ballot at any of these locations during early voting:

• Babylon Town Hall Annex in North Babylon
• Board of Elections in Yaphank
• Dix Hills Fire Department in Dix Hills
• Huntington Public Library in Huntington Station
• Church of St. Joseph in Kings Park
• Nesconset Elementary School in Nesconset
• Stony Brook University Southampton in Southampton

Where do voters cast a ballot on primary day?

Voters must cast a ballot at their designated polling location on Tuesday, June 24. To find that information or to confirm eligibility, visit voterlookup.elections.ny.gov.

When must absentee and mail-in ballots be received?

Ballots must be postmarked no later than June 24 and received by the Board of Elections no later than July 1. They can be delivered in-person at the BOE or poll site no later than Tuesday, June 24 at 9 p.m. and they can also be delivered to an early voting poll site.

Can a voter cast a ballot during early voting and then change it?

No, once a voter has cast a ballot during early voting there is no changing or voting on primary day, according to state law.

When is the deadline to register to vote for the November general election?

The deadline to register for the Nov. 4 general election is Oct. 25. A New York State Voter Registration Form can be found at elections.ny.gov.

What if a voter encounters problems at the polls?

An Election Protection Hotline will be available during early voting and on primary day to troubleshoot issues voters may face — including voter intimidation — the New York attorney general announced. The hotline can be reached at 866-390-2992.