Pi Day 2025 Date And Time. Check also the date of pi day in 2026 and in the following years. Make a pie to celebrate pi day on march 14, 2025!

History, top tweets, 2025 date, facts, and things to do. Pi approximation day is celebrated on july 22 since this date is written 22/7 in the day/month date format, which is viewed as a reference to the fraction 22/7.