[tz] More on EU/UK/Brexit clock changes
Michael H Deckers
michael.h.deckers at googlemail.com
Fri Feb 14 23:01:14 UTC 2020
On 2020-02-12 01:57, Paul Eggert wrote about the
study from the House of (Time) Lords:
> On 2/11/20 5:36 PM, Chris Woodbury wrote:
>> The "Time Lords" subcommittee has released yet another study. Find
>> it at:
> They also mentioned us at some length on page 25 about how to best
> implement UTC+1 year-round in the UK.
In the IANA statement SCT0004 referenced on page 22,
>> The notion of permanent summertime is not supported by the
>> standard, which covers most of the computer servers in the UK.
This is correct in the sense that POSIX does not mention
summer time -- but POSIX mentions
"alternative (dst - such as Daylight Savings Time) timezone"
in addition to standard time.
And a TZ string may well specify that the "alternative" time
is "permanent" (in the sense of being in force throughout the
year), for instance with:
so that POSIX does support permanent "alternative time zones".
Hence it is not clear to me exactly which unsupported feature
of POSIX is meant in the quote above.
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