On Wed, Oct 30, 2019 at 05:01:56PM +0100, Guillem Jover wrote:
This indeed works in Debian, but I think it's strictly speaking incorrect according to POSIX, and as such is non-portable.
It's non portable in a way which hasn't been relevant in more than 20 years and as such isn't worth wasting time over. The POSIX TZ spec is irrelevant to real systems except insofar as it can be used to explain unexpected behavior when people make a typo.