On Tue, Apr 9, 2024 at 11:28 PM Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> wrote: > CST6CDT and the like are POSIX timezone, with no rule for transition. > And POSIX doesn't enforce how to interpret the rule if it's omited. > Some libc (e.g. glibc) resorted back to IANA (formerly Olson) db rules > for those timezones. Some libc (e.g. FreeBSD) uses a fixed rule. > Other libc (e.g. musl) interpret that as no transition at all [1]. s/omited/omitted/ > In addition, distributions (notoriously Debian-derived, which uses IANA > db for CST6CDT and the like) started to split "legacy" timezones > like CST6CDT, EST5EDT into `tzdata-legacy', which will not be installed > by default [2]. > > In those cases, t9604 will run into failure. > > Let's switch to POSIX timezone with rules to change timezone. > > 1: http://mm.icann.org/pipermail/tz/2024-March/058751.html > 2: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1043250 > > Signed-off-by: Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx>
