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- Federal
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- Japan
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- Every May 3
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Constitution Memorial Day in Japan calls for reflection every May 3. This solemn observance commemorates the promulgation of the nation’s 1947 post-war constitution, which enshrined peace and democracy. Take time to learn about Japan’s commitment to these values and consider their global impact.
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Expected Constitution Memorial Day Deals
Constitution Memorial Day in Japan is a time for reflection rather than commercial deals. However, organizations dedicated to peace, human rights, and international relations, such as the United Nations Association of Japan or the Peace Boat, may host events or educational programs. Local bookstores might feature titles on Japanese history, civics, or peace studies. Cultural centers could offer special exhibits on post-war Japan or democratic governance. We will update this page with confirmed live events and educational initiatives as May 3 approaches.
Platform Guide for Constitution Memorial Day
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Mention @NatlToday and use #ConstitutionMemorialDay to share insights on Japan’s post-war constitution and its global impact on peace.
Mention National Today (facebook.com/nationaltoday) and use #JapanConstitutionDay. Share historical facts or discuss the importance of peace and democracy.
Tag National Today (linkedin.com/company/nationaltoday) and use #CivicDuty. Professionals can discuss the role of constitutional law in modern governance and international relations.
Constitution Memorial Day Hero
Shigeru Yoshida
History of Constitution Memorial Day
Japan’s Constitution Memorial Day is held every year on May 3. It is a national holiday and it is the second day in the Golden Week of Japan. Memorial Day is special because it celebrates the new constitution that was drafted and brought into legislation after Japan’s emperor, Emperor Showa, surrendered to the Allied Forces, namely the U.S., in 1945. It took a period of two years for the new constitution to be finalized and ratified. Finally, on May 3, 1945, the new constitution replaced the older one, which was known as the Meiji Constitution.
The Meiji Constitution put much emphasis on conquering other nations through violence and war. It did not have much regard for its civilians and their well-being. On the other hand, the newer constitution focused on upholding the sovereignty of its people, protecting them, and resolving any international conflicts without the use of weapons. The people of Japan also favored democracy as it would allow them to not only choose their own leaders but also choose those sets of principles that served them and their future generations well.
Originally, Constitution Memorial Day was meant to be commemorated on November 3 as that was the day when the new constitution was finalized. Many people lobbied for November 3 but it was not chosen because this was also the day when the war crime trials of imperial officers began. Thus, May 3 was finally chosen as it also happened to be the day on which the new constitution replaced the older one. As May 3 is a public holiday, many people also visit the constitution building to take pictures and experience the history. This is the only day when the building and the constitution documents are open to the public.
Constitution Memorial Day timeline
The biggest and bloodiest war in human history starts in 1939, with Japan being part of the Axis Forces.
The U.S. drops atomic bombs on Hiroshima and Nagasaki, killing around 226,000 people and permanently maiming many others and future generations.
Japan surrenders to the U.S. and the rest of the Allies in an effort to stop WWII from further escalating.
The new constitution comes into full force on May 3, instantly replacing the Meiji Constitution.
How Businesses Can Celebrate Constitution Memorial Day
Local businesses, particularly those with ties to Japanese culture or international relations, can observe Constitution Memorial Day by hosting educational displays or discussions on peace. Bookstores can curate sections on Japanese history or civics. Restaurants might offer special menus that reflect a spirit of unity and national identity. The focus should be on respectful remembrance and promoting understanding rather than commercial gain.
Constitution Memorial Day FAQs
When is Constitution Memorial Day?
Constitution Memorial Day 2027 will be observed on Monday, May 3. This date consistently commemorates the establishment of Japan’s post-war constitution.
What is the significance of Japan's 1947 Constitution?
Promulgated on May 3, 1947, Japan’s Constitution established a pacifist state and shifted sovereignty from the Emperor to the people. It has been a cornerstone of the nation’s post-war identity and international relations.
Is Constitution Memorial Day a national holiday in Japan?
As a national public holiday, Constitution Memorial Day on May 3, 2027, will see many businesses and schools closed across Japan. It provides an opportunity for citizens to reflect on their nation’s foundational legal document.
What is Golden Week in Japan?
In 2027, Golden Week will again feature Constitution Memorial Day, along with Showa Day (April 29), Greenery Day (May 4), and Children’s Day (May 5). This period is one of Japan’s busiest travel seasons.
How To Observe Constitution Memorial Day
Visit the Japanese constitution building
Many people make a day out of the public holiday by visiting the constitution building. You can take pictures, read up on the original constitution document, and just immerse yourself in the historical moment. This is the only day the building and the document are open to the public, so make sure you soak it in.
Read up on WWII history
A lot changed when WWII started and ended. Many were lost, others were found, but in the end, the damage, in most cases, was irreparable. Children, either orphaned or lost/abandoned due to the war, met ugly ends in the form of starvation and other hideous crimes. Look back on those times to put today into perspective.
Vow against violence and war
Constitution Memorial Day rallies against war as it brings forth the ugliest sides of humanity. Those who are for war are often not aware of the short-term and long-term implications the violence can inflict on humanity. Therefore, peace and prosperity are the only paths to welfare and happiness.
5 Facts About Golden Week That Will Blow Your Mind
Emperor Showa Day
Since 2006, April 29 is celebrated as Emperor Showa Day, honoring the emperor and his efforts during WWII.
Constitution Memorial Day
The former prime minister, Shigeru Yoshida, wanted this day to be celebrated on November 3, but it was moved as Emperor Meiji’s birthday also falls on that day.
Greenery Day
This day was originally reserved for Emperor Showa’s birthday, however, with the assignment of a separate day for Emperor Showa, Greenery Day became separate and is now celebrated on May 4.
National Holiday
Only celebrated in 2019, May 1 was celebrated as a national holiday as it marked the day when Crown Prince Naruhito took the throne.
Children’s Day
Being the last holiday of the Golden Week, this holiday takes place on May 5 and is meant to celebrate children and their individual personalities.
Why We Love Constitution Memorial Day
It’s a celebration of peace
Peace is an absolutely necessary tenet of life. If destroyed and/or taken away, things go topsy-turvy, resulting in negative things taking up space in our lives. Living harmoniously with our brothers and sisters is the only way to lead a happy and peaceful life all around.
It’s a celebration of democracy
Democracy is one of the most successful political systems in the world today. Because of the power it lends to the common public, people become in charge of their lives and get to decide what they want to do and where they want to go.
It’s a reminder of worse times
By remembering history and the bad times of the past, we can appreciate the good times more. Additionally, we can also be better prepared for dealing with our present and future.


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