have a nice day

Have a nice day is a very common expression which is used when someone wants to tell another person to have a good day. This is simply a polite gesture which is wishing this person will enjoy the rest of their day and very commonly used. To have a nice day, means to have a peaceful, fun, enjoyable day which is free of stress, worry and troubles. It is often spoken quickly and as a gesture to someone you know, or even someone you are just passing by.