• “There is no such term as “custody” in the Florida Statutes nor is there a primary or secondary residential parent designation in the Florida Statutes. In Florida, both parents have “time-sharing” with their children. The court will order a time-sharing schedule that is in the best interests of the children
• Terms that reflect the type of time-sharing schedule include “majority time-sharing” and “equal time-sharing.”
• If both parents enjoy equal time-sharing, then child support is still calculated using the Child Support Guidelines Worksheet, which is dependent on the parties income, percentage time-sharing (only overnights are used for purposes of establishing the percentages), health insurance, and costs of daycare and uncovered medical expenses. As the payor’s percentage of time-sharing increases, the less he or she will pay in child support generally.
• Historically, courts have favored mothers with regard to caring for children particularly with children in their “tender years.” However, Florida courts have abolished the tender years doctrine and the statutes do not favor one parent over the other based on gender.”

Source: Cordell & Cordell Law Firm.  http://cordellcordell.com/resources/florida/florida-child-custody-questions/