« All EventsThis event has passed.Mustard DayAugust 1« Mark Cuban’s BirthdayIce Cream Sandwich Day »August 1, 2026 is Mustard Day. Enjoy it your way. Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Share:FacebookXWhatsAppThreadsTextMore… Details Date: August 1 Event Tags:DidYouKnow, FoodHolidays, WhatzToday