Hi, If your not in ground school, you can take vacations/time off whenever you want.Thats between you and your instructor. I know a guy who would let his account get too low and the school puts you on NO FLY, or vacation time for him. Personally, I only took time off between steps, especially during instruments. You can get rusty very quickly. At Christmas time FSI is a ghost town. Like i said you can choose what you want to do, your the paying customer and the boss. Plus there really is no hurry to get done asap. Take your time and have fun. If you have a loan i thing the time is limited to 60 days in a calander year LOA(Leave of absents)
Tony