420, 4:20, or 4/20 (pronounced four-twenty) is cannabis culture slang for marijuana and hashish consumption, especially smoking around the time 4:20 p.m., and also refers to cannabis-oriented celebrations that take place annually on April 20 (which is 4/20 in U.S. form). In locations in the United States where cannabis is legal, cannabis dispensaries will often offer discounts on their products on April 20.