On Brazilian radio, there is an AutoDJ tool that allows you to place a time notice. for example if it is 2:00 pm, and it is programmed to play the hour vignette, based on the time zone (already present in AzuraCast), a warning sounds saying something like: "it is two o'clock in the afternoon". I'm trying to do it myself, but I'm a PHP novice. I want to leave my suggestion and a request too. thankful.
Ps: sorry my bad language, I don't speak english.