Hi all On Wed, Mar 09, 2022 at 05:53:03PM +1030, Jonathan Woithe wrote: > Turning to PC-2, things became confusing. This older environment also has an > xfs created many years ago. Two tests were run: > > * > touch -d '1800/01/01 02:23:45.67' foobar > > ls --full-time foobar > -rw-r--r-- 1 jwoithe users 0 1800-01-01 02:23:45.670000000 +0914 foobar > > * > touch -d '2100/01/01 02:23:45.67' foobar > > ls --full-time foobar > -rw-r--r-- 1 jwoithe users 0 2100-01-01 02:23:45.670000000 +1030 foobar > > ... However, it seems that the system somehow manages to store the > out-of-bound years. Doing so has an interesting effect on the timezone > offset for the pre-1901 years, ... Following the information provided by Darrick I still wanted to understand the "+0914" timezone offset. I've done some research and it turns out that prior to 1 February 1895 the time zone in this part of the world really was UT+0914 (or, to be entirely accurate, UT+0914.5) [1]. In those days noon was defined to be the time that sun was directly overhead, hense the odd-ball timezone. The "+0914" timezone reported in the year-1800 case is therefore correct. Regards jonathan [1] https://sahistoryhub.history.sa.gov.au/subjects/time
