How many days until Pi Day?
Pi Day 2027 is on Sunday, March 14, 2027, 165 days from today. The countdown below updates live for your time zone.
until Sunday, March 14, 2027
165d 00h 00m 00s
Counting from Wednesday, September 30, 2026, in your time zone.
*Business days count Monday–Friday from tomorrow through the target date and skip U.S. federal holidays (observed dates).
When is Pi Day 2027?
Pi Day 2027 is on Sunday, March 14, 2027.
Pi Day, March 14, celebrates the mathematical constant π, which starts 3.14159. It's also Albert Einstein's birthday. The U.S. House of Representatives passed a resolution recognizing Pi Day in 2009, and schools mark it with math games and, of course, pie.
Want the plain date countdown? See how many days until March 14.
Pi Day dates for the next few years
| Year | Date | Day | Days from today |
|---|---|---|---|
| 2027 | March 14 | Sunday | 165 |
| 2028 | March 14 | Tuesday | 531 |
| 2029 | March 14 | Wednesday | 896 |
| 2030 | March 14 | Thursday | 1,261 |
| 2031 | March 14 | Friday | 1,626 |
| 2032 | March 14 | Sunday | 1,992 |
Frequently asked questions
When is Pi Day 2027?
Pi Day 2027 is on Sunday, March 14, 2027.
How many days until Pi Day?
There are 165 days until Pi Day (March 14, 2027), counting from Wednesday, September 30, 2026.
What day of the week is Pi Day 2027?
Pi Day 2027 falls on a Sunday.
How many weeks until Pi Day?
Pi Day is 23 weeks and 4 days away (165 days).
How many months until Pi Day?
Pi Day is 5 months and 14 days away.
How many business days until Pi Day?
There are 117 weekdays (Monday–Friday) between tomorrow and March 14, 2027, or 110 business days if you skip U.S. federal holidays.
How many hours until Pi Day?
About 3,960 hours, counting from midnight today. The live counter above shows the exact hours, minutes and seconds left for your time zone.