Paul, Excellent! Thanks for those references, which I've added to my reading list for the coming week. Regards, Daniel -----Original Message----- From: Paul Eggert [mailto:eggert@cs.ucla.edu] Sent: Sunday, October 15, 2017 5:14 PM To: Daniel Ford Cc: 'Time Zone Mailing List' Subject: Re: [tz] Beginner's help request Daniel Ford wrote:
Perhaps if I can find somewhere that explains 'POSIX TZ string format', I might begin to understand your table. I'll have a look around.
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html (Look for "TZ".) This explains the POSIX TZ variable's format. http://man7.org/linux/man-pages/man5/tzfile.5.html (Look for "Version 3 format".) This explains the minor extensions used in tzdb binary files.