Felicity Huffman
Actress Felicity Huffman, shown leaving Boston's federal courthouse on Sept. 13, 2019 escorted by her husband William H. Macy, pleaded guilty to paying $15,000 to boost her daughter's SAT college entrance exam score. AFP/Joseph Prezioso

Felicity Huffman began her 14-day sentence on Tuesday, but that's not how long she will remain behind bars.

The actress is currently in prison for her role in the college admissions scandal, with a projected release date of Oct. 27. Some may have noticed that her release date is just one day shy of her 14-day sentence, and that would be correct, which begs the question: Why is Huffman only serving 13 out of 14 days? Because she technically already served one day of time.

According to a spokesperson for the Federal Bureau of Prisons who spoke with Entertainment Tonight, the 56-year-old received credit for one day of jail time, to account for the time she spent in custody when she was originally arrested at her Los Angeles home on March 12, taken in and booked.

"Any part of a day spent in official detention equals one day for credit purposes," the spokesperson clarified. "Credit is given for time spent in official detention as a direct result of the federal offense for which the federal sentence was imposed."

While behind bars, Huffman will be able to enjoy similar activities to those as if she wasn't. As previously reported, she will be allowed to sunbathe, play board games, watch TV in a common area and have one hour of recreation time per day. She won't, however, be able to sleep in -- at least not during the week. The mother of two will have to make her bed by 6:30 a.m. on weekdays and 10:00 a.m. on weekends.

In addition to prison time, Huffman will also face one year of suspended release, with conditions including 250 hours of community service when she is released.