72f3e52014-10-16Henrik Grubbström (Grubba) README for the tz distribution
4982fe2019-05-06Henrik Grubbström (Grubba) "Where do I set the hands of the clock?" -- Les Tremayne as The King "Oh that--you can set them any place you want." -- Frank Baxter as The Scientist
72f3e52014-10-16Henrik Grubbström (Grubba)  (from the Bell System film "About Time")
b401d62018-12-18Henrik Grubbström (Grubba) The Time Zone Database (called tz, tzdb or zoneinfo) contains code and
72f3e52014-10-16Henrik Grubbström (Grubba) data that represent the history of local time for many representative locations around the globe. It is updated periodically to reflect changes made by political bodies to time zone boundaries, UTC offsets, and daylight-saving rules.
5bee8d2016-11-26Henrik Grubbström (Grubba) See <https://www.iana.org/time-zones/repository/tz-link.html> or the
07968a2018-09-05Henrik Grubbström (Grubba) file tz-link.html for how to acquire the code and data. Once acquired,
5bee8d2016-11-26Henrik Grubbström (Grubba) read the comments in the file 'Makefile' and make any changes needed
72f3e52014-10-16Henrik Grubbström (Grubba) to make things right for your system, especially if you are using some platform other than GNU/Linux. Then run the following commands, substituting your desired installation directory for "$HOME/tzdir": make TOPDIR=$HOME/tzdir install
07968a2018-09-05Henrik Grubbström (Grubba)  $HOME/tzdir/usr/bin/zdump -v America/Los_Angeles
72f3e52014-10-16Henrik Grubbström (Grubba) 
b401d62018-12-18Henrik Grubbström (Grubba) This database of historical local time information has several goals:
72f3e52014-10-16Henrik Grubbström (Grubba) 
b401d62018-12-18Henrik Grubbström (Grubba)  * Provide a compendium of data about the history of civil time that is useful even if not 100% accurate.
72f3e52014-10-16Henrik Grubbström (Grubba) 
b401d62018-12-18Henrik Grubbström (Grubba)  * Give an idea of the variety of local time rules that have existed in the past and thus may be expected in the future.
72f3e52014-10-16Henrik Grubbström (Grubba) 
b401d62018-12-18Henrik Grubbström (Grubba)  * Test the generality of the local time rule description system.
72f3e52014-10-16Henrik Grubbström (Grubba)  The information in the time zone data files is by no means authoritative; fixes and enhancements are welcome. Please see the file CONTRIBUTING for details. Thanks to these Time Zone Caballeros who've made major contributions to the time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; Guy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to Michael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales for testing work, and to Gwillim Law for checking local mean time data. Thanks in particular to Arthur David Olson, the project's founder and first maintainer, to whom the time zone community owes the greatest debt of all. None of them are responsible for remaining errors.
ac5f542016-02-07Henrik Grubbström (Grubba) ----- This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. The other files in this distribution are either public domain or BSD licensed; see the file LICENSE for details.