National Say It Now Day is observed worldwide every December 17. This day encourages individuals to express gratitude by telling their loved ones how important they are, promoting the Say It Now movement initiated by Walter Green. The movement began after Green's personal experiences, including a journey to thank 44 people who impacted his life and a conversation about hosting a living tribute for a friend. Established in 2024 by Legacy+ and National Day Calendar, the day provides an opportunity for people to share their appreciation through various means such as phone calls, letters, dinners, or hosting living tributes. Participants are also encouraged to use the hashtag #NationalSayItNowDay on social media to spread the word and inspire others to partake in the celebration.