March 2026
No. Su Mo Tu We Th Fr Sa
10 1 2 3 4 5 6 7
11 8 9 10 11 12 13 14
12 15 16 17 18 19 20 21
13 22 23 24 25 26 27 28
14 29 30 31 1 2 3 4
  • In 2026 year Pi Day falls on
    second Saturday of March

Pi Day dates in the following years:

Su Mo Tu We Th Fr Sa
Mar. 2025
14
Mar. 2026
14
Mar. 2027
14
Mar. 2028
14
Mar. 2029
14
The dates the holiday is observed are marked with a dotted line (applies to federal holidays). Date calculations are based on your computer's time.

Pi Day 2026

Saturday, March 14

Pi Day is celebrated on 14 March mainly in school and academic environments. This day is related to the notation of 14 March date - 3.14. which means decimal approximation of pi number. The first celebrations of Pi Day was held on 14 March 1988. The idea was initiated by Larry Shaw.