Hiroshima Day 2025: History, significance of this darkest hour in history

We reflect on the irreversible loss and renew our global vow for peace as the world observes the 80th anniversary of the Hiroshima bombing - one of the most devastating events in human history

Hiroshima Day 2025: Eighty years on, the world still remembers the flash that changed history. On August 6, 2025, Hiroshima Day will mark the 80th anniversary of the atomic bombing that devastated the Japanese city in 1945 — a grim reminder of the horrors of nuclear warfare and the enduring call for peace.

 

It brings to mind the disastrous effects of World War II on humanity in 1945, when the atomic bomb was detonated on Hiroshima, causing unprecedented destruction and loss of life. 

 

Hiroshima Day is celebrated globally on this day with a number of activities aimed at advancing nuclear disarmament and peace. The day promotes dialogue on the morality of war and the defence of civilians while highlighting human rights.

 

What is the history of Hiroshima Day?

An estimated 39% of the population of Hiroshima, the majority of whom were civilians, were killed when the United States detonated the first nuclear bomb in history on this day in 1945 over the city. The US-commissioned Manhattan Project produced two atomic bombs. 

 

The US detonated the atomic bomb "Little Boy" on Hiroshima on August 6, 1945, at around 8:15 AM local time. This was the first time a nuclear weapon was used in war. At almost 600 meters above the ground, the bomb exploded.

 

Between 90,000 and 140,000 people were killed instantly when an American B-29 bomber dropped it on the city, and thousands more suffered from generational defects that still affect some members of the population today. 

Hiroshima Day 2025 Date:

The US detonated the atomic bomb "Little Boy" on Hiroshima on August 6, 1945, at around 8:15 AM local time.  

What is the significance of Hiroshima Day?

Hiroshima Day stands as a solemn reminder of the catastrophic atomic bombing of 1945 that razed an entire city and left Japan grappling with long-lasting devastation. It underscores the universal truth that all wars are brutal — and nuclear warfare, incomparably so. As the world reflects on this dark chapter, it also sends a powerful message to global leaders: in an age where just nine nations hold over 13,000 nuclear weapons, diplomacy must be the only path forward in 21st-century geopolitics.

 

Hiroshima's experiences and teachings encourage a dedication to peace and a will to promote a nuclear-weapons-free world. In honouring the past, we continue Hiroshima's legacy and work to ensure that tragedies like this 'never happen again'.

5 top asked FAQs on 80th Hiroshima Day 2025

1. What is Hiroshima Day, and why is it observed?

 

Every year on August 6, people commemorate Hiroshima Day to mark the 1945 atomic bombing of Hiroshima, Japan, during World War II. In addition to calling for world peace, it is a day of remembrance for the victims and a sobering reminder of the terrible effects of nuclear weapons.

 

2. What were the immediate effects of the bombing?

 

The blast caused extensive damage and the immediate deaths of between 70,000 and 80,000 persons. Numerous survivors experienced serious radiation consequences, burns, and injuries. 

 

3. What were the long-term effects of the bombing?

 

Long-term repercussions included psychological stress and persistent health problems for survivors, such as elevated cancer rates and birth deformities. Hiroshima came to represent the atrocities of nuclear conflict.

 

4. Why is Hiroshima Day still important today?

 

By promoting a society free from the threat of nuclear weapons and provoking contemplation on the human cost of conflict, Hiroshima Day draws attention to the necessity of nuclear disarmament and peace. 

 

Peace memorials, silent times, educational initiatives, anti-nuclear campaigns, peace walks, and lantern-floating are some of the ways people remember.

 

5. Is Hiroshima safe to visit today?

 

Indeed, the reconstructed city of Hiroshima represents peace. Visitors are welcome to the Hiroshima Peace Memorial Park and Museum.