Work prohibition depends on the type of festival
The five minor Jewish fasts like Tzom Gedaliah, 10 Tevet, 17 Tammuz commemorate tragedies in Jewish history.
Are Thanksgiving and Halloween "kosher"?
The rhythm of Jewish life is determined by its calendar. Jewish existence is given structure and meaning by the passage of time. There are rituals, celebrations, and holidays that are observed on a daily, weekly, monthly, and yearly basis.