Yes, holidays are calculated in different ways. Christmas, New Year’s Day, and July 4 are all like Halloween in that they are tied to a date, not a specific day of the week. Some holidays, like Thanksgiving or Labor Day (the first Monday in September), are tied to a day of the week, not a specific date, so they will always be on a certain day (not date).
Yes, holidays are calculated in different ways. Christmas, New Year’s Day, and July 4 are all like Halloween in that they are tied to a date, not a specific day of the week. Some holidays, like Thanksgiving or Labor Day (the first Monday in September), are tied to a day of the week, not a specific date, so they will always be on a certain day (not date).