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:
https://publications.parliament.uk/pa/ld5801/ldselect/ldeucom/15/15.pdf ... 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, I read: >> The notion of permanent summertime is not supported by the POSIX.1-2017 >> standard[4], 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: EET-2/BST-1,J1/01:00,J365/24:00 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. Michael Deckers.