March 14 national days 2026
On March 14th, 4 national days fall on this date.
March 14 is a date on the 2026 national-day calendar. TheDayOf currently lists 4 observances for this date: National Potato Chip Day, Pi Day, National Science Day, and World Sleep Day. Open any day page for the date, history, and how to celebrate, or browse the rest of March from the month hub.
National Potato Chip Day
Crack open a bag for National Potato Chip Day on March 14 — an informal U.S. snack holiday that shares the calendar with Pi Day. The chip’s…
Pi Day
Pi Day lands on March 14 because the date written 3/14 matches the start of π (about 3.14159…). What began as a playful Exploratorium staff…
National Science Day
Celebrate the wonders of scientific discovery on National Science Day! Science shapes our understanding of the world and drives innovation…
World Sleep Day
Rest up on World Sleep Day! This global initiative raises awareness about sleep health's importance. Good sleep is essential for physical…