When the kids go back to school in September. They do this every summer now. Kids with irresponsible parents are Jam City's main source of income, and Full Marks/House Pride are their big moneymaker events because of their inherently competitive nature.
From June to September, you should always expect to take a long-ass vacation from HPHM. There's plenty of other shit to do. Read a book. Touch grass. 100% a video game. Hang out with your friends.