Japan's Coming of Age Day traditions are evolving! Learn how the lowered legal adult age impacts celebrations and ceremonies for those turning 18 or 20.

Coming of Age Day (Seijin no Hi) is a Japanese holiday on the second Monday of January. Traditionally for 20-year-olds, a recent law lowered the adult age to 18, creating regional variations in celebrations. Travelers may encounter different age groups being honored depending on the locality.

Some cities now celebrate 18-year-olds to emphasize new responsibilities, while others continue honoring 20-year-olds, aligning with traditional views. Some regions even celebrate both ages, offering unique experiences for visitors. Be mindful of local customs if you plan to participate or observe.

If you're attending a ceremony or sending gifts, consider the recipient's age group and regional practices. For 18-year-olds, offer encouragement for their future. For 20-year-olds, acknowledge their transition with thoughtful wishes. Always double-check addresses and avoid unlucky language in messages.