Have a nice day definition
have a nice day
Also, have a good day; have a good one. A cordial goodbye to you. For example, Thanks for the order, have a nice day, or See you next weekhave a good day, or The car's ready for youhave a good one. These expressions have become synonymous with a polite farewell. The first originated about 1920 but, like the variants, became widespread only after 1950.