On 2024-06-18 05:20, Bruno Haible wrote:
Thanks. This is not documented in POSIX [1] nor in the man-pages [2]. Would it make sense that I suggest it to be documented in the man-pages?
That'd be fine, yes. It's a convention in TZDB, e.g.: $ TZ=Factory date +'%Y-%m-%d %H:%M:%S %z (%Z)' 2024-06-18 15:29:50 -0000 (-00) POSIX allows this, but doesn't require or document it.