24 weeks until Pi Day
There are 24 full weeks and 4 days until Pi Day, which falls on Sunday, March 14, 2027. As a single figure that is 24.6 weeks, and as working time it is 24.4 working weeks.
How many weeks until Pi Day?
24 weeks and 4 days. Celebrated on 14 March because the US date format renders it 3/14, the first three digits of pi. The 4-day remainder is the offset between today, a Wednesday, and Pi Day, a Sunday. For the day figure ticking live, use the Pi Day countdown.
Week by week to Pi Day
There are 24 Monday boundaries between now and Pi Day, and crossing each one takes a week off the count.
| Week boundary | Week starts | ISO week | Weeks still to go |
|---|---|---|---|
| 1 | September 28, 2026 | 40 | 23 |
| 2 | October 5, 2026 | 41 | 22 |
| 3 | October 12, 2026 | 42 | 21 |
| 4 | October 19, 2026 | 43 | 20 |
| 5 | October 26, 2026 | 44 | 19 |
| ... | 14 further weeks not listed | ... | ... |
| 20 | February 8, 2027 | 6 | 4 |
| 21 | February 15, 2027 | 7 | 3 |
| 22 | February 22, 2027 | 8 | 2 |
| 23 | March 1, 2027 | 9 | 1 |
| 24 | March 8, 2027 | 10 | 0 |
Which week of the year does Pi Day fall in?
Pi Day 2027 sits in ISO week 10, while today sits in week 39. Because Pi Day keeps the same calendar date every year, its ISO week number still drifts, by one week at a time, as the weekday of March 14 moves forward. The Monday-to-Sunday dates are listed on the week 10 page.
How many weekends are left before Pi Day?
25 weekends, counting Saturdays that have not yet passed, out of the 172 days ahead. Of those days, 122 are working days and 50 fall at a weekend. Weekly commitments are easier to plan against the weekday tally than against the raw week count: 24 Mondays and 25 Fridays remain. The weekends until Pi Day page sets out the counting rule in full.
Weeks until Pi Day in coming years
| Year | Date | Weekday | Weeks from today | Odd days |
|---|---|---|---|---|
| 2027 | March 14 | Sunday | 24 | 4 |
| 2028 | March 14 | Tuesday | 76 | 6 |
| 2029 | March 14 | Wednesday | 129 | 0 |
| 2030 | March 14 | Thursday | 181 | 1 |
| 2031 | March 14 | Friday | 233 | 2 |
The gap between 2027 and 2028 is 366 days, or 52.29 weeks, so the week count never simply rises by 52.
Questions
- How many weeks until Pi Day?
- 24 weeks and 4 days, from September 23, 2026 to March 14, 2027.
- How many working weeks is that?
- 24.4, being 122 Monday-to-Friday days at five per week.
- What day of the week is Pi Day 2027?
- A Sunday, March 14, 2027, in ISO week 10.
- How many days until Pi Day?
- 172 days. See the live Pi Day countdown.
Weeks until other dates
Pi Day in other units
All week countdowns · Weeks left in 2026 · Day of the year · Date calculator