420 time意思

"420" is a term that has become associated with marijuana culture and is used to refer to the consumption of cannabis, especially around the time of 4:20 PM. The term is believed to have originated in the 1970s in California, when a group of high school students would meet at 4:20 PM to smoke marijuana. The term has since been adopted by the wider cannabis community as a code word for marijuana use and has become an international symbol for cannabis culture.