Holiday pay, commonly called "doubletime", is not to be confused with overtime pay. Holiday premium pay is pay for non-overtime hours of work that you are required to work on a holiday. So for each hour of work that you are required to work on a holiday, you receive holiday premium pay which is equal to your rate of basic pay. (Overtime premium pay is pay for hours of work in excess of the daily or weekly overtime standards, regardless of the day.)
Employees who are required to work on a holiday are entitled to a minimum of 2 hours of holiday premium pay. Employees on flexible work schedule are only entitled to receive a maximum of 8 hours of holiday premium pay. Employees on compressed work schedules are entitled to a maximum of 9 or 10 hours of holiday premium pay, depending on their work schedule.