Holiday Calendar
9 holidays observed on this day
Friday, August 21
Friday,
August 21
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What August 21 celebrates

9 holidays observed around the world. Sorted by how many people have saved them.

Ranked by all-time saves, not today's activity

National Senior Citizens Day BIGGEST ON AUGUST 21
Relationships Family United States

National Senior Citizens Day

Honor the seniors in your life on National Senior Citizens Day - show them your love and appreciation with thoughtful gestures and kind words!

Read the full story
02
Internet Self-Care Day
Observance
Internet Self-Care Day

Take some time for yourself and practice self-care - today is Internet Self-Care Day! Unplug from your devices and reconnect with yourself.

Health Self-Care United States
125
03
Hawaiian Shirt Day
Observance
Hawaiian Shirt Day

Embrace the vibrant spirit of Aloha by donning your colorful Hawaiian shirt on this fun-filled Hawaiian Shirt Day!

Style Fashion United States
48
04
International Day of Remembrance and Tribute to the Victims of Terrorism
Awareness day
International Day of Remembrance and Tribute to the Victims of Terrorism

On International Day of Remembrance and Tribute to the Victims of Terrorism, we honor those affected by acts of terror and stand in solidarity against hate and violence.

Awareness Violence Prevention International
46
05
National Brazilian Blowout Day
Observance
National Brazilian Blowout Day

Make National Brazilian Blowout Day a special one - pamper yourself and get that perfect smooth, shiny look you have been dreaming of!

Style Hair United States
34
06
National Spumoni Day
Food observance
National Spumoni Day

Indulge in a delicious Italian treat on National Spumoni Day - creamy, fruity, and oh-so-satisfying! Don't miss out on this tasty holiday.

Food Ice Cream United States
34
07
Gold Cup Parade
Observance
Gold Cup Parade

Join the vibrant celebration! The Gold Cup Parade is here — enjoy the spectacle of creativity, spirit, and community unity on display.

Culture Regional Canada
23
08
Ninoy Aquino Day
Observance
Ninoy Aquino Day

Honor the legacy of a true hero on Ninoy Aquino Day - let's remember his bravery and sacrifice for our country.

Culture Famous People International
11
09
World Alternative Games
Observance
World Alternative Games

Embrace the different, the unique, the fun at the World Alternative Games! An extraordinary event that breaks the norm in competitive sports.

Sports Extreme Sports Wales
1
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When is August 21?

Year Falls on From today
2025 Thursday 352 days ago
2026 Friday Viewing in 13 days
2027 Saturday in 378 days
2028 Monday in 744 days
By the numbers

August 21, measured

504 all-time saves across this date’s holidays
2 brands have run deals on this date
9 named holidays fall on this date
From Holiday Calendar Studies
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This week & month

25 month-long observances and 4 week-long ones that include August 21.

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