Requirements:  Seasons Note: This mod works only on new save files, and new households, since current save files have already fully loaded the calendar. This mod adds 8 new holidays and 3 surprise holidays. All holidays can be edited and adjusted in-game to your liking. This mod will conflict with any other premade holidays mod since it overrides the calendar. Summerfest  - The ultimate celebration of sun, fun, and outdoor activities, where Sims come together to enjoy a gran