SALT LAKE CITY — Six months after Utah became the first state government in the nation to adopt a four-day work week, the money-saving experiment is attracting interest from other states trying to ease their financial problems.

"Why? Three words: Massive. Budget. Deficit," said New York state Rep. Michael Gianaris, a Democrat who estimates his state would save $30 million by switching to a four-day week.

Because of New York's $15 billion budget shortfall, "there are a lot of painful decisions that have been put before us," Gianaris said.

Utah switched to a four-day week last year primarily to save money on electricity, gasoline and other energy expenses. The change affected 17,000 state employees, who now work 10 hours a day, four days a week.

Employees have embraced the long weekends, and the public has grown accustomed to state agencies being closed on Fridays.

An interim report released earlier this month by Gov. Jon Huntsman concludes that the initiative will cut greenhouse gas emissions by more than 12,000 metric tons, reduce gasoline consumption among commuting employees by 744,000 gallons annually and pump as much as $3 million into the economy from workers who have to spend less money on gas.

The state is also saving more than $200,000 on janitorial contracts.

A hiring freeze and budget cuts have made it difficult to tell if Utah's shorter workweek will attract new job applicants. But many existing employees have found that the schedule offers more flexibility.

"I don't have kids, so it doesn't complicate my personal life. It actually frees up my weekend, and I like that more," said Danielle Downey, a compliance specialist for the state's insect programs. "This way, I've got that extra day to do things at home and then I have two recreation days."

At the same time, complaints about closed offices have dropped, and wait times at the Division of Motor Vehicles are actually decreasing because the agency now has extended hours Monday through Thursday.

But state officials expect to fall short of their goal of saving $3 million on energy because of unpredictable prices, an overestimation of how many buildings they could close and because some employees fail to shut off computers or copy machines.

The governor's office says its phones are ringing off the hook, with states such as New Mexico asking questions about the four-day workweek, but many lawmakers here are still skeptical.

"I always had reservations and we've not been shown yet data that would show the benefits of it," said Republican state Sen. Greg Bell.

Huntsman, who introduced the initiative with little to no input from state workers, residents or lawmakers, is urging patience.

The governor plans to evaluate the program's effectiveness in June or July and decide then whether to continue with the four-day schedules.

"We'll kind of do an evaluation of the underlying metrics to see what it has meant to the state in terms of energy savings, which will be different now because energy costs have gone down, but they're certain to go up again," he said.