Seijin Shiki: Coming of Age Day (second Monday of January) Hinamatsuri: Doll Festival (March 3) Hanami: Flower Viewing (late March to early May) Hanamatsuri: Flower Festival (April 8) Tanabata: Star Festival (July 7) Shichi-Go-San: festival day for children aged three, five and seven (November 15) Ōmisoka: New Year's Eve (December 31)