Well, we’ve been calling our times gmt and bst (British Summer T) throughout membership of the EU, and that’s bound to continue; however, our synchronisation with Europe on the changeover dates might change in the future, perhaps.
Perhaps brexit should be a time-zone acronym, left as an exercise for readers, with the meaning of infinite, tedious, delay. Apologies - too much chat, but too tempting. Happy New Year, Mike Sent from my iPad > On 27 Dec 2018, at 13:48, Raul Miller <[email protected]> wrote: > > Well... yes. > > That’s why I was suggesting to have TZ access by calling out to whatever > the OS has implemented, rather than anything else. > > Still, just getting access to time in the GMT zone would be a major > improvement. (And, as an aside, GMT is probably what most of the UK will > stick with in brexit —just a hunch.) > > Thanks, > > — > Raul > > On Thursday, December 27, 2018, Jo van Schalkwyk <[email protected]> > wrote: > >> It's wise here to look at the IANA tz program, which is pretty >> comprehensive and maintained fairly scrupulously. See >> https://www.iana.org/time-zones . Hint: do NOT waste your time with the lz >> 'Complete set'. >> >> Wise but also maddening, as the rules are baroque beyond belief. As an >> amusing aside, the documentation is complex and the comments make hilarious >> reading, as does the 2011 Astrolabe lawsuit (Mentioned here: >> https://en.wikipedia.org/wiki/Tz_database but as I recall, the details >> were >> quite weird) >> >> A few of years ago I wrote a Perl program to translate the tz rules into to >> a long but simple array of zones, transition times, offsets and daylight >> saving adjustments, and it nearly broke me. >> >> Good luck! >> >> My 2c, Jo. >> >> On Thu, 27 Dec 2018 at 21:26, Anssi Seppälä <[email protected]> >> wrote: >> >>> Yes indeed. Any system would be helpful because more difficulties are to >>> come: EU is planning to stop the day-light-saving-time and let the member >>> countries individually select to which time zone the want to stay. Not to >>> mention Brexit were Brittons surely do their own decision. >>> >>> Anssi >>> >>> -----Alkuperäinen viesti----- >>> Lähettäjä: Programming <[email protected]> >>> Puolesta Raul Miller >>> Lähetetty: Wednesday, 26 December 2018 21.44 >>> Vastaanottaja: Programming forum <[email protected]> >>> Aihe: [Jprogramming] time zones >>> >>> I ran into a situation today, where I need to handle time zones in J. >>> >>> After poking around a bit, I found >>> >>> >>> https://code.jsoftware.com/wiki/User:Ric_Sherlock/Extend_ >> Dates_Project/DatesAdd_Script >>> >>> and >>> >>> http://www.jsoftware.com/pipermail/programming/2014-March/036357.html >>> >>> So, basically, here's my impression of where things are at: >>> >>> (1) time zones are an issue which people need to deal with relatively >>> often. >>> >>> (2) the details are arbitrary, vary from year to year and based on the >>> government in charge of the location in question. >>> >>> So: >>> >>> (3) There's almost always some sort of time zone database included with >>> every modern operating system. >>> >>> Currently, we've got informal partial support for time zones (only for >>> Windows - not for OSX, Linux, etc.). For the unix parts of the world, >>> probably https://man.openbsd.org/gettimeofday.2 or maybe as a >>> fallback: >>> https://www.gnu.org/software/libc/manual/html_node/Time- >> Zone-Functions.html >>> is the way to go... >>> >>> That's more work than my current project warrants - I'm just going to use >>> a hard coded constant for now, and maybe turn that into a prompted thing >>> later, if necessary. But I might come back to this issue at some point... >>> (and I expect other people will, also -- this is, after all, an issue >> that >>> people need to deal with relatively often). >>> >>> FYI, >>> >>> -- >>> Raul >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
