April 19, 2026, 6:03 a.m. ET
A beloved unofficial holiday for a lot of Americans however one you will not discover on most calendars, 4/20, also known as Weed Day, falls on Monday, April 20.
Coincidentally touchdown on National Cheddar Fries Day and National Pineapple Upside-Down Cake Day, the date is shaping as much as be an ideal day for snack-lovers and munchies-havers alike. With a smorgasbord of food deals from native and nationwide chains to select from, there is not any scarcity of how to have fun.
But how did an in any other case random day in April change into shorthand for marijuana tradition? Over the years, loads of theories have ranged from police codes to hidden references in traditional songs. The most generally accepted origin story is a bit more paying homage to a traditional highschool expertise.
So how did 4/20 change into the official-unofficial weed holiday? Here’s what we all know.
What does 420 imply?
420 refers to the date April 20, which has come to be referred to as the (*20*), when marijuana people who smoke have fun their love of bud.
The quantity 420 itself has additionally change into shorthand for marijuana tradition, usually used as a colloquial reference to the plant and the act of consuming it. The day can be utilized by activists and supporters to name for broader legalization and federal decriminalization of weed in the U.S. and past.

Why is 420 related to weed?
You could have heard a few of the hottest rumors which have swirled by way of the tradition zeitgeist over the years: that 420 is the police code for marijuana use; that it refers to the variety of energetic chemical substances in weed; that April 20 was Bob Marley’s birthday (it wasn’t); or that it is a nod to Bob Dylan’s track “Rainy Day Women #12 & 35” (12 instances 35 equals 420).
In actuality, the origin is way less complicated and maybe much less thrilling than these theories.
While nobody can say for absolute sure, one extensively accepted origin traces again to a bunch of youngsters hanging out after college.
In the early Nineteen Seventies, five students at San Rafael High School in Marin County, California, would meet after extracurricular actions close to a wall in school. The group, ultimately referred to as the “Waldos,” merely for the indisputable fact that they met by a wall to do their factor, made their official assembly time for 4:20 p.m. and ultimately began utilizing “420” as code for smoking.
One of the Waldo members, Dave Reddix, later obtained work as a roadie for the Grateful Dead, and the band helped to popularize the time period, he told Time Magazine. A key second got here in December 1990, when some Oakland Deadheads distributed a flyer inviting individuals to smoke on April 20 at 4:20 p.m.
A reporter at High Times journal got hold of the flyer and printed it in 1991, bringing it to the consideration of hashish followers throughout state traces. The journal continued utilizing “420” in later publications, solidifying its place in popular culture.
Steve Bloom, the “High Times” reporter who initially acquired the flyer, later credited the Waldos for originating the time period. In a 2013 blog, he wrote that “they wanted people all over the world to get together on one day each year and collectively smoke pot at the same time. They birthed the idea of a stoner holiday, which April 20 has become.”
Where is weed authorized?
Looking ahead to partaking this 4/20? Make positive you perceive the marijuana legal guidelines the place you reside
The legalization of marijuana varies by state, with guidelines starting from medical-only use to totally leisure. Currently, a minimum of 24 states and D.C. have legalized recreational use, and several other others are weighing adjustments by way of laws or upcoming poll measures.
Is weed authorized the place you reside? Check our list and map of where recreational and medicinal marijuana is allowed in 2026.
