ExcelNotes

Mountain Day (Japan)
2026-08-11
Mountain Day was established to give people an opportunity to appreciate mountains and nature, recognizing their cultural and spiritual importance in Japan's landscape. Many people spend the day hiking, camping, or visiting scenic mountain areas. The holiday highlights Japan's deep respect for nature and encourages outdoor recreation and environmental awareness.
When is Mountain Day?
Mountain Day is celebrated in Japan on August 11 each year.
The following is the list of Mountain Day from 2020 to 2049.

HolidayDateWeekday

Mountain DayAug 10, 2020Monday

Mountain DayAug 11, 2021Wednesday

Mountain DayAug 11, 2022Thursday

Mountain DayAug 11, 2023Friday

Mountain DayAug 11, 2024Sunday

Mountain DayAug 11, 2025Monday

Mountain DayAug 11, 2026Tuesday

Mountain DayAug 11, 2027Wednesday

Mountain DayAug 11, 2028Friday

Mountain DayAug 11, 2029Saturday

Mountain DayAug 11, 2030Sunday

Mountain DayAug 11, 2031Monday

Mountain DayAug 11, 2032Wednesday

Mountain DayAug 11, 2033Thursday

Mountain DayAug 11, 2034Friday

Mountain DayAug 11, 2035Saturday

Mountain DayAug 11, 2036Monday

Mountain DayAug 11, 2037Tuesday

Mountain DayAug 11, 2038Wednesday

Mountain DayAug 11, 2039Thursday

Mountain DayAug 11, 2040Saturday

Mountain DayAug 11, 2041Sunday

Mountain DayAug 11, 2042Monday

Mountain DayAug 11, 2043Tuesday

Mountain DayAug 11, 2044Thursday

Mountain DayAug 11, 2045Friday

Mountain DayAug 11, 2046Saturday

Mountain DayAug 11, 2047Sunday

Mountain DayAug 11, 2048Tuesday

Mountain DayAug 11, 2049Wednesday

The History of Mountain Day?
Mountain Day is one of Japan's newest national holidays, created to encourage appreciation of the nation's rich natural landscapes and to promote outdoor activities.
The idea for Mountain Day originated from mountaineering and nature organizations, including the Japanese Alpine Club, which proposed the holiday to celebrate Japan's deep cultural connection with mountains. Mountains have long held spiritual and cultural significance in Japan, featuring prominently in Shinto and Buddhist traditions as sacred places believed to house gods.
In 2014, Japan's National Diet officially established Mountain Day, making it the 16th national holiday. It was first celebrated in 2016, with the purpose stated as "to provide opportunities to get familiar with mountains and appreciate their blessings". The date, August 11, was chosen partly because it fits conveniently within the summer season and partly because the numbers "8" (山's two peaks) and "11" (two trees side by side) visually evoke the image of mountains.
In 2020, the date was temporarily moved to August 10 to align with the rescheduled Tokyo Olympics, but it returned to August 11 the following year.
Today, Mountain Day is celebrated with hiking events, mountain festivals, and community clean-ups across the country. From Mount Fuji to the Japanese Alps, people use the day to reconnect with nature, enjoy Japan's scenic landscapes, and reflect on the harmony between humans and the natural world.

Summer Bank Holiday (IOM)
2026-08-31
The Summer Bank Holiday in the Isle of Man (IOM) is giving residents a seasonal long weekend before autumn. Though not tied to specific Manx traditions, it is enjoyed with fairs, leisure activities, and serves as a final break before the new school year begins.
When is Summer Bank Holiday?
Summer Bank Holiday in the Isle of Man is observed on the last Monday in August.
The following is the list of Summer Bank Holiday from 2020 to 2049.

HolidayDateWeekday

Summer Bank HolidayAugust 31, 2020Monday

Summer Bank HolidayAugust 30, 2021Monday

Summer Bank HolidayAugust 29, 2022Monday

Summer Bank HolidayAugust 28, 2023Monday

Summer Bank HolidayAugust 26, 2024Monday

Summer Bank HolidayAugust 25, 2025Monday

Summer Bank HolidayAugust 31, 2026Monday

Summer Bank HolidayAugust 30, 2027Monday

Summer Bank HolidayAugust 28, 2028Monday

Summer Bank HolidayAugust 27, 2029Monday

Summer Bank HolidayAugust 26, 2030Monday

Summer Bank HolidayAugust 25, 2031Monday

Summer Bank HolidayAugust 30, 2032Monday

Summer Bank HolidayAugust 29, 2033Monday

Summer Bank HolidayAugust 28, 2034Monday

Summer Bank HolidayAugust 27, 2035Monday

Summer Bank HolidayAugust 25, 2036Monday

Summer Bank HolidayAugust 31, 2037Monday

Summer Bank HolidayAugust 30, 2038Monday

Summer Bank HolidayAugust 29, 2039Monday

Summer Bank HolidayAugust 27, 2040Monday

Summer Bank HolidayAugust 26, 2041Monday

Summer Bank HolidayAugust 25, 2042Monday

Summer Bank HolidayAugust 31, 2043Monday

Summer Bank HolidayAugust 29, 2044Monday

Summer Bank HolidayAugust 28, 2045Monday

Summer Bank HolidayAugust 27, 2046Monday

Summer Bank HolidayAugust 26, 2047Monday

Summer Bank HolidayAugust 31, 2048Monday

Summer Bank HolidayAugust 30, 2049Monday

The History of Summer Bank Holiday?
The Bank Holidays Act of 1871 introduced the first official bank holidays across the United Kingdom. One of these was the first Monday in August, known as the August Bank Holiday, created to give workers a guaranteed summer break.
Over time, the early-August date was criticized for being too close to other holidays and for not balancing the work year evenly. In the late 1960s, the UK moved the holiday to the last Monday in August, to extend the summer season and provide a late-summer long weekend.
The Isle of Man, while self-governing, has traditionally aligned many of its public holidays with those of the UK for consistency. Following the UK reform, the island adopted the last Monday in August as its Summer Bank Holiday.
Today, the Summer Bank Holiday is recognized as a public holiday in the Isle of Man, rather than a uniquely Manx festival. It provides a seasonal break, often used for leisure, family gatherings and local events, marking the end of summer before the school year and autumn season begin.

Autumnal Equinox Day (Japan)
2026-09-23
Autumnal Equinox Day marks the moment when day and night are nearly equal in length. It is a time to honor nature, express gratitude for the harvest and pay respects to ancestors. Many families visit graves, offer food and flowers, and spend time together. The day blends Buddhist and Shinto traditions, symbolizing balance, harmony and the changing of seasons.
When is Autumnal Equinox Day?
Autumnal Equinox Day is celebrated in Japan around September 22 or 23 each year.
The following is the list of Autumnal Equinox Day from 2020 to 2049.

HolidayDateWeekday

Autumnal Equinox DaySep 22, 2020Tuesday

Autumnal Equinox DaySep 23, 2021Thursday

Autumnal Equinox DaySep 23, 2022Friday

Autumnal Equinox DaySep 23, 2023Saturday

Autumnal Equinox DaySep 22, 2024Sunday

Autumnal Equinox DaySep 23, 2025Tuesday

Autumnal Equinox DaySep 23, 2026Wednesday

Autumnal Equinox DaySep 23, 2027Thursday

Autumnal Equinox DaySep 22, 2028Friday

Autumnal Equinox DaySep 23, 2029Sunday

Autumnal Equinox DaySep 23, 2030Monday

Autumnal Equinox DaySep 23, 2031Tuesday

Autumnal Equinox DaySep 22, 2032Wednesday

Autumnal Equinox DaySep 23, 2033Friday

Autumnal Equinox DaySep 23, 2034Saturday

Autumnal Equinox DaySep 23, 2035Sunday

Autumnal Equinox DaySep 22, 2036Monday

Autumnal Equinox DaySep 23, 2037Wednesday

Autumnal Equinox DaySep 23, 2038Thursday

Autumnal Equinox DaySep 23, 2039Friday

Autumnal Equinox DaySep 22, 2040Saturday

Autumnal Equinox DaySep 23, 2041Monday

Autumnal Equinox DaySep 23, 2042Tuesday

Autumnal Equinox DaySep 23, 2043Wednesday

Autumnal Equinox DaySep 22, 2044Thursday

Autumnal Equinox DaySep 22, 2045Friday

Autumnal Equinox DaySep 23, 2046Sunday

Autumnal Equinox DaySep 23, 2047Monday

Autumnal Equinox DaySep 22, 2048Tuesday

Autumnal Equinox DaySep 22, 2049Wednesday

The History of Autumnal Equinox Day?
Autumnal Equinox Day is a Japanese national holiday that reflects the country's deep reverence for nature, family, and the rhythm of the seasons. The holiday occurs around September 22 or 23, when day and night are nearly equal, symbolizing balance and harmony.
Its origins trace back to ancient Shinto and Buddhist traditions. Long before it became a public holiday, the equinox was observed as a sacred time to honor ancestors and nature. During the Heian period (794–1185), the imperial court held ceremonies marking the equinoxes as times of gratitude for harvests and remembrance of the deceased.
During the Meiji era (1868–1912), the holiday was formalized as an imperial religious observance called Shūki Koreisai (秋季皇霊祭), a ceremony in which the Emperor honored past emperors and imperial ancestors. However, after World War II, Japan's new constitution required the separation of religion and state. Thus, in 1948, the holiday was redefined and secularized under its current name as part of the Public Holiday Law.
The modern purpose of Autumnal Equinox Day is "to honor nature and show love for living things". Yet, many of its traditional customs remain. It falls during Higan, a Buddhist week of reflection observed during both the spring and autumn equinoxes. Families visit ancestral graves, clean tombstones, offer flowers and seasonal foods and pray for peace and balance.
Today, Autumnal Equinox Day represents a blend of ancient spirituality and modern appreciation, a quiet, reflective day that connects the Japanese people with both nature's cycles and their familial roots.

Sports Day (Japan)
2026-10-12
Sports Day promotes health, fitness and an active lifestyle while commemorating the 1964 Tokyo Olympics, Japan's first hosting of the Games. Schools and communities organize athletic festivals featuring races, games, and team competitions that foster teamwork and national spirit. The day encourages people of all ages to enjoy sports and appreciate the importance of physical well-being.
When is Sports Day?
Sports Day is celebrated in Japan on the second Monday of October each year.
The following is the list of Sports Day from 2020 to 2049.

HolidayDateWeekday

Sports DayJul 24, 2020Friday

Sports DayJul 23, 2021Friday

Sports DayOct 10, 2022Monday

Sports DayOct 09, 2023Monday

Sports DayOct 14, 2024Monday

Sports DayOct 13, 2025Monday

Sports DayOct 12, 2026Monday

Sports DayOct 11, 2027Monday

Sports DayOct 09, 2028Monday

Sports DayOct 08, 2029Monday

Sports DayOct 14, 2030Monday

Sports DayOct 13, 2031Monday

Sports DayOct 11, 2032Monday

Sports DayOct 10, 2033Monday

Sports DayOct 09, 2034Monday

Sports DayOct 08, 2035Monday

Sports DayOct 13, 2036Monday

Sports DayOct 12, 2037Monday

Sports DayOct 11, 2038Monday

Sports DayOct 10, 2039Monday

Sports DayOct 08, 2040Monday

Sports DayOct 14, 2041Monday

Sports DayOct 13, 2042Monday

Sports DayOct 12, 2043Monday

Sports DayOct 10, 2044Monday

Sports DayOct 09, 2045Monday

Sports DayOct 08, 2046Monday

Sports DayOct 14, 2047Monday

Sports DayOct 12, 2048Monday

Sports DayOct 11, 2049Monday

The History of Sports Day?
Sports Day, later renamed Health and Sports Day, was established to promote physical fitness and commemorate Japan's first hosting of the Tokyo Olympic Games in 1964.
The holiday was first observed on October 10, 1966, two years after the Tokyo Olympics, which had officially opened on October 10, 1964—a date chosen for its historically clear weather. The success of the 1964 Olympics symbolized Japan's postwar recovery and reemergence as a modern, peaceful nation, making the event a proud milestone in national history.
In 2000, under the Happy Monday System, the holiday was moved to the second Monday of October to create a long weekend and encourage more participation in sports and outdoor activities.
In 2020, the name was officially changed from "Physical Education Day" to "Sports Day" to better reflect modern values of sportsmanship, enjoyment, and inclusivity beyond formal education or athletic training.
When Japan hosted the Tokyo 2020 Olympics (held in 2021 due to the pandemic), the holiday was temporarily shifted to July 23, 2021, aligning with the opening ceremony. It returned to October in subsequent years.
Today, Sports Day is celebrated across Japan with school field days, community athletic meets, and public fitness events. It encourages people of all ages to engage in physical activity, fostering health, teamwork, and the Olympic spirit of unity and perseverance.
