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Fun Holiday – World Hello Day

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

21 Nov
World Hello Day
Saturday, November 21, 2026
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Woman waving hello out of a car window.
Say "hello" to everyone you meet on World Hello Day.
©iStockphoto.com/Maridav

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

Year Weekday Date Name
2025 Fri Nov 21 World Hello Day
2026 Sat Nov 21 World Hello Day
2027 Sun Nov 21 World Hello Day
2028 Tue Nov 21 World Hello Day
2029 Wed Nov 21 World Hello Day
2030 Thu Nov 21 World Hello Day
2031 Fri Nov 21 World Hello Day
2032 Sun Nov 21 World Hello Day
2033 Mon Nov 21 World Hello Day
2034 Tue Nov 21 World Hello Day