Oranjegekte takes place during the holiday celebrated on what day?
Oranjegekte: Oranjegekte (Orange craze) or Oranjekoorts (Orange fever) is a phenomenon in the Netherlands that occurs during major sporting events, especially international football championships, and during Koningsdag, an annual holiday celebrating the king's birthday. Koningsdag:  Celebrated on 27 April (26 April if the 27th is a Sunday), the date marks the birth of King Willem-Alexander.
27 April