The next phase of voting in the process leading up to Florida’s Aug. 28 primary election started Monday as 18 counties opened their early voting, with all 67 counties opening early voting by Saturday.

Among the counties starting early voting Monday are Duval, Hillsborough, Miami-Dade, and Palm Beach.

“Early voting offers registered Florida voters another convenient way to cast their ballot before Election Day,” said Secretary of State Ken Detzner. “All 67 counties will offer early voting from August 18 through August 25 at designated early voting sites. Some counties may offer additional days of early voting. Contact your local Supervisor of Elections for information about early voting dates, times and locations in your county.”

Florida’s early voting rules require polls must begin 10 days before election day, with counties being allowed to add extra days. Polls must be open at least eight hours daily.

During early voting, voters can cast their ballots at any site in their county of residence. Dates, times and location vary by county.

For a complete list of early voting schedules, click here.

Mail-in voting began last week. The state says more than 571,400 votes have been cast.

The gubernatorial races for governor are the primary contests on the ballot.  Former U.S. Rep. Gwen Graham, former Miami Beach Mayor Philip Levine, Tallahassee Mayor Andrew Gillum and businessmen Jeff Greene and Chris King are the Democratic candidates. On the Republican side, Agriculture Commissioner Adam Putnam and U.S. Rep. Ron DeSantis are the two main candidates.