Day of Hearts in Haarlem and Amsterdam
Day of Hearts in Haarlem and Amsterdam is held on August 17. It is celebrated on the third Monday in August. This event in the second decade of the month august is annual.
Bonaire Flag Day on September 6 (The flag of Bonaire was adopted in 1984);
Festival in Leiden, Netherlands on October 3 (Leidens Ontzet - tradition since 1886 in honor of the end of the siege in 1574);
Opening of carnival on November 11 ("Karneval"/"Fasching"), on 11-11, at 11:11. (Germany, the Netherlands, and other countries);
Sint Maarten's Day on November 11 (Sint Maarten, Kingdom of the Netherlands);
Sinterklaas in the Netherlands on December 5 (It is celebrated on the evening before Sinterklaas’ birthday on December 5, especially in families with little children);
St Nicholas Day on December 6 (International. The St. Nicholas/Santa Claus leaves little presents in children's shoesl)