On 07/06/2019 20:38, Paul Eggert wrote:
On 6/7/19 11:57 AM, Paul Gilmartin via tz wrote:
What is the effect on tm_isdst? Do they care whether their documents are timestamped PDT or MST?
As far as I know these questions have not been addressed, and quite possibly they won't be addressed even if the law changes so we'll just have to do our best. If (say) California changes to permanent -07 then the longstanding tzdb tradition would be to mark it as standard time (i.e., tm_isdst = 0); presumably it would be abbreviated "MST" for compatibility with Internet RFC 5322 and the like. No matter what we put into tzdb at that point, we'd undoubtedly break something and get complaints.
It may be confusing if large parts of the west coast are on "Mountain Time" as suggested by "MST". It seems like a good excuse to follow the more recent tradition of replacing alphanumeric abbreviations with numeric ones. -- -=( Ian Abbott <abbotti@mev.co.uk> || Web: www.mev.co.uk )=- -=( MEV Ltd. is a company registered in England & Wales. )=- -=( Registered number: 02862268. Registered address: )=- -=( 15 West Park Road, Bramhall, STOCKPORT, SK7 3JZ, UK. )=-