World Hello Day 2025. The objective is to say hello to ten people on the day. World hello day is a holiday celebrated by over 180 countries worldwide and aims not only to raise awareness of the need for better communication to sow the seeds of peace but also to bridge cultural barriers among people of all.

World hello day is celebrated every year on november 21st. World hello day 2022 takes place on monday, november 21, 2022.