🇯🇵 Japan
Coming of Age Day
Next observed on Monday, 11 January 2027.
When is Coming of Age Day in 2027?
Monday, 11 January 2027
Counting down to Coming of Age Day
What Coming of Age Day marks

Coming of Age Day is a public holiday in Japan held annually on the second Monday of January under the Happy Monday System. It is held in order to congratulate and encourage all those who have already reached the age of maturity between April 2 of the previous year and April 1 of the current year, and to help them realise that they have become adults. Festivities include coming of age ceremonies held at local and prefectural offices, as well as after-parties among family and friends.
Background summarised from Wikipedia — Public holiday in Japan, available under CC BY-SA.
Coming of Age Day dates: 2027–2031
| Year | Date | Day | Full calendar |
|---|---|---|---|
| 2027 | Monday | Japan 2027 | |
| 2028 | Monday | Japan 2028 | |
| 2029 | Monday | Japan 2029 | |
| 2030 | Monday | Japan 2030 | |
| 2031 | Monday | Japan 2031 |
Frequently asked
When is Coming of Age Day in 2027?
Coming of Age Day falls on Monday, 11 January 2027 in Japan.
What day of the week is Coming of Age Day 2027?
Coming of Age Day 2027 falls on a Monday, 11 January 2027.
When is Coming of Age Day in 2028?
Coming of Age Day falls on Monday, 10 January 2028.
Where is Coming of Age Day observed?
Observed nationally in Japan.
What does Coming of Age Day celebrate?
Public holiday in Japan. Coming of Age Day is a public holiday in Japan held annually on the second Monday of January under the Happy Monday System. It is held in order to congratulate and encourage all those who have already reached the age of maturity between April 2 of the previous year and April 1 of the current year, and to help them realise that they have become adults. Festivities include coming of age ceremonies held at local and prefectural offices, as well as after-parties among family and friends.