When Is Pi Day 2027?

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Pi Day 2027 falls on Sunday, March 14, 2027.

Pi Day 2027 falls on Sunday, March 14, 2027 — a Sunday. That is 142 days from today. The date is confirmed, so the only thing that moves is the countdown itself.

Pi Day 2027 — date by year
YearDateDay of week
2027Sun 14 Mar 2027Sunday
2028Tue 14 Mar 2028Tuesday
2029Wed 14 Mar 2029Wednesday
2030Thu 14 Mar 2030Thursday
2031Fri 14 Mar 2031Friday
2032Sun 14 Mar 2032Sunday

Why the day of the week moves

A date advances by one weekday each year, because 365 days is 52 weeks plus one day. In a leap year it advances by two, which is why the weekday occasionally jumps. Over the six years in the table above you can watch both patterns: the single-step years and the leap-year double step.

This matters more than it sounds if you are planning around a weekend. An event that lands on a Saturday this year may fall midweek in two years' time, which changes everything from travel to time off.

About Pi Day 2027

Pi Day 2027 falls on Sunday, March 14, 2027. March 14 — 3/14 — is the world's favorite mathematical holiday, celebrating the circle constant Ī€ ≈ 3.14159. Traditionally observed with pie, at 1:59 PM if you're serious about it.

The live counter above counts down the days, hours and minutes to Pi Day 2027 in your local time zone, and switches to a 'days since' counter once it arrives.

Quick facts

DateSunday, March 14, 2027
CategoryHoliday / observance

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