Pi Day 2026 has already happened. It was Saturday, 14 March 2026, 167 days ago. This page is kept whichever side of today the date falls on: the date and the rule behind it are worth looking up either way. For the year after this one see Pi Day 2027, and for the always-current countdown see the next Pi Day.
Pi Day 2026 is Saturday, 14 March 2026
Pi Day 2026 fell on Saturday, 14 March 2026, which was 167 days before 28 August 2026. That is 23 weeks and 6 days, or 116 working days once Saturdays, Sundays and the US federal holidays in between are taken out — the figure that matters if you are counting delivery lead time or a work schedule rather than sleeps. The date is 2026-03-14 in ISO form and 3/14/2026 in the US format, it falls in ISO week 11 of 2026, and it is day 73 of 365.
How the date of Pi Day is decided
Pi Day is 14 March, written 3/14 in US date format.
That makes it a fixed date: the same day of the same month every year, so it lands on a different weekday each time. In 2026 it is a Saturday.
Pi Day is an observance rather than a federal holiday. Offices, banks and schools stay open unless an individual employer chooses otherwise, and it counts as an ordinary business day in every calculator here. Only the eleven federal holidays are treated as non-working days — the list and the reasoning are on the holiday sources page.
Pi Day in the years after 2026
| Year | Date | Day | Countdown |
|---|---|---|---|
| 2027 | 14 March 2027 | Sunday | Pi Day 2027 |
| 2028 | 14 March 2028 | Tuesday | Pi Day 2028 |
| 2029 | 14 March 2029 | Wednesday | Pi Day 2029 |
The date does not move, but the weekday does — which is why the same holiday gives a long weekend in some years and not others.
Every convention used above — whether the start date counts, how month ends are clamped, which holidays close an office — is written out on the methodology page, including how we count the 116 working days above.