April 10th is "Siblings Day." A day to think of siblings in their own way. Call for support.
April 10th marks "Siblings Day," kicking off "Siblings Day 10Days" until April 20th. This commemorative day encourages people to reflect on their siblings and calls for support and cooperation from companies, organizations, and individuals to spread its awareness in society. The goal is to create opportunities to think about siblings, similar to Mother's Day and Father's Day.
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- 📰 Published: April 10, 2026 at 19:18
- 🔍 Collected: April 11, 2026 at 00:27 (5h 9m after Published)
- 🤖 AI Analyzed: April 20, 2026 at 01:38 (217h 10m after Collected)
Do you know that there is a day to think about "siblings," just like Mother's Day and Father's Day?
Today, April 10th, is "Siblings Day." It marks the start of "Siblings Day 10Days" until April 20th.
"Siblings Day" is a day to reflect on siblings in their own way (certified by the Japan Anniversary Association in 2019). Through this initiative, we are calling for support and cooperation from companies, organizations, and individuals to spread "Siblings Day" throughout society.
## ■ Suggestions for spreading "Siblings Day"
"Siblings Day" is a commemorative day that anyone can easily participate in.
We hope that companies and stores will also utilize this initiative as something that can be incorporated into their daily activities.
For example...
- Developing products and services tailored to "Siblings Day"
- Collaborating with strawberries and tulips, which are symbols of "Siblings Day"
- Suggesting gifts for siblings (setting up special corners, gift sets, message cards)
- Introducing works and books with "siblings" as a theme
- Posting and planning in stores and facilities
- Spreading the word on social media (#SiblingsDay)
- Utilizing it as an internal communication measure
We aim to create opportunities to think about "siblings," just like "Mother's Day" and "Father's Day."
## ■ The thoughts behind it
Relationships with siblings vary from person to person, and some people harbor complex feelings, not just warm memories. There are also those who grew up as only children or who have lost siblings.
Furthermore, among children who grow up as siblings of children with illnesses or disabilities (so-called "sibling children"), some spend their days with various feelings.
"Siblings Day" encompasses such diverse backgrounds.
Today, April 10th, is "Siblings Day." It marks the start of "Siblings Day 10Days" until April 20th.
"Siblings Day" is a day to reflect on siblings in their own way (certified by the Japan Anniversary Association in 2019). Through this initiative, we are calling for support and cooperation from companies, organizations, and individuals to spread "Siblings Day" throughout society.
## ■ Suggestions for spreading "Siblings Day"
"Siblings Day" is a commemorative day that anyone can easily participate in.
We hope that companies and stores will also utilize this initiative as something that can be incorporated into their daily activities.
For example...
- Developing products and services tailored to "Siblings Day"
- Collaborating with strawberries and tulips, which are symbols of "Siblings Day"
- Suggesting gifts for siblings (setting up special corners, gift sets, message cards)
- Introducing works and books with "siblings" as a theme
- Posting and planning in stores and facilities
- Spreading the word on social media (#SiblingsDay)
- Utilizing it as an internal communication measure
We aim to create opportunities to think about "siblings," just like "Mother's Day" and "Father's Day."
## ■ The thoughts behind it
Relationships with siblings vary from person to person, and some people harbor complex feelings, not just warm memories. There are also those who grew up as only children or who have lost siblings.
Furthermore, among children who grow up as siblings of children with illnesses or disabilities (so-called "sibling children"), some spend their days with various feelings.
"Siblings Day" encompasses such diverse backgrounds.