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Nov21 Fun Holiday – World Hello Day

World Hello Day on November 21 is an unofficial holiday created to promote world peace through interpersonal communication.

Woman waving hello out of a car window.

Say "hello" to everyone you meet on World Hello Day.


The unofficial holiday was created by Brian and Michael McCormack as a response to the Yom Kippur War between Israel and a coalition of Arab states led by Egypt and Syria in 1973.

Say Hello

The purpose of World Hello Day is simple – to encourage communication and dialogue between people of different backgrounds in order to achieve peace and understanding.

Since its beginning in 1973, the day has been celebrated around the world annually with several Nobel Peace Prize winners and peace activists taking part in it.

How to Celebrate?

  • World Hello Day requires that participants greet at least 10 people. These people can be family and friends, but it is suggested that one finds strangers to greet and talk to.

Did You Know…

…that hello was used as a telephone greeting for the first time by Thomas Edison?

World Hello Day Observances

Fun Holiday: World Hello Day Observances
2024ThuNov 21World Hello Day
2025FriNov 21World Hello Day
2026SatNov 21World Hello Day
2027SunNov 21World Hello Day
2028TueNov 21World Hello Day
2029WedNov 21World Hello Day
2030ThuNov 21World Hello Day
2031FriNov 21World Hello Day
2032SunNov 21World Hello Day
2033MonNov 21World Hello Day

See all Fun Holidays

Other Fun Holidays around November 21

18 Nov

Push Button Phone Day

Commemorate the humble push button phone on November 18 or Push Button Phone Day.

21 Nov

Use Less Stuff Day

Cut down on your carbon footprint by using and buying fewer things on this environmentally conscious holiday.

22 Nov

Go For a Ride Day

Take a ride on your favorite vehicle and feel the wind in your hair.