Days of week on Hebrew calendar the "four gates". Since three arrangements cannot occur within the fixed calendar, most holidays can each occur on one of four possible days. All the holy days and festivals fall in the months of Nisan through Tishrei, months one to seven. These months always have the same number of days, alternating 30 and 29. The next two months are Cheshvan and Kislev, months eight and nine. Both or either of these months can have either 29 or 30 days, allowing for adjustments to be made and the schedule in the coming year to be manipulated. (On a regular year, Cheshvan
Dump months prompted studios to release films in that genre at times of the year other than Halloween and the dump months. The term "dump months" comes from the belief that studios use the time periods in question as a "dumping ground" for movies they are contractually obligated to release but believe to have limited commercial prospects at best. "The big studios would never in a million years use this phrase", Dade Hayes, coauthor of "Open Wide: How Hollywood Box Office Became A National Obsession", told "Newsday" in August 2017. "[B]ut they do view [these times of year] as a dumping ground."