Mitt Romney is poised for a win in Florida Tuesday night as voting is under way in the Sunshine state.

Polls close at 7 p.m. for Florida’s presidential primary, but the state spans two time zones, meaning votes will continue being cast in part of the panhandle, in the western part of the state, until 8 p.m. on the East Coast.

The Florida Department of State said turnout had been light to moderate, but declined to offer any projections for turnout.

“The election has been going very smooth,” said elections spokesman Chris Cate. “Early voting went smooth and it’s continued into election day. We don’t expect any problems.”

More than 650,000 Floridians cast early votes for the presidential primary, Cate said.

Polls conducted in the Sunshine State in the lead-up to the election showed Romney with an edge of between 5 and 20 points over Newt Gingrich, and Romney was visibly more confident in the days before the election than he was just a week earlier, when Gingrich defeated him by a dozen points in South Carolina.

Romney’s confidence that Florida is his to lose was evident Tuesday as he kept a low profile while Gingrich pursued a packed schedule of campaign events. Romney held just one public appearance Tuesday, visiting with volunteers at his Florida headquarters in Tampa before taking questions from reporters on the grass outside.

Gingrich, meanwhile, held four events in four different cities, hoping to make his case to any outstanding undecided voters. At his first stop of the day, in Windermere, Fla., he took a dig at Romney, predicting the nominating contest would continue into the summer “unless Romney drops out sooner.”

READ MORE: THE HILL