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README for the tz distribution

"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
					(from the Bell System film "About Time")

The Time Zone Database (called tz, tzdb or zoneinfo) contains code and
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.

See <https://www.iana.org/time-zones/repository/tz-link.html> or the
file tz-link.html for how to acquire the code and data.  Once acquired,
read the comments in the file 'Makefile' and make any changes needed
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
	$HOME/tzdir/usr/bin/zdump -v America/Los_Angeles

See the file tz-how-to.html for examples of how to read the data files.

This database of historical local time information has several goals:

 * Provide a compendium of data about the history of civil time that
   is useful even if not 100% accurate.

 * Give an idea of the variety of local time rules that have existed
   in the past and thus may be expected in the future.

 * Test the generality of the local time rule description system.

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.

-----

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.

 Name                                               Last modified      Size  
 Parent Directory                                                        -   
 CVS/                                               17-Apr-2024 05:11    -   
 CONTRIBUTING                                       22-Mar-2022 18:48  3.2K  
 LICENSE                                            24-Oct-2017 19:38  252   
 Makefile                                           11-Dec-2022 18:57   47K  
 Makefile.inc                                       04-Apr-2019 21:42  967   
 NEWS                                               26-Jul-2023 05:10  212K  
 README                                             09-Oct-2020 20:38  2.4K  
 SECURITY                                           22-Oct-2021 16:26  773   
 Theory                                             11-Mar-2017 19:23   38K  
 asctime.c                                          16-Aug-2022 12:56  3.8K  
 calendars                                          16-Aug-2022 12:56  5.4K  
 checktab.awk                                       15-Aug-2014 13:04  5.2K  
 ctime.3                                            11-Dec-2022 18:57   14K  
 difftime.c                                         22-Oct-2021 16:26  1.7K  
 getdate.3                                          11-Feb-2018 14:28  7.2K  
 getdate.c                                          04-Jan-2018 21:57  7.5K  
 leapseconds.awk                                    26-Dec-2013 19:34  2.3K  
 localtime.c                                        26-Jul-2023 05:10   66K  
 offtime.3                                          25-Oct-2017 21:01  1.5K  
 private.h                                          26-Jul-2023 05:10   24K  
 strftime.3                                         25-Oct-2022 10:07  9.7K  
 strftime.c                                         11-Dec-2022 18:57   20K  
 strptime.3                                         25-Oct-2022 01:18  8.8K  
 strptime.c                                         17-Apr-2024 05:11   18K  
 theory.html                                        11-Dec-2022 18:57   61K  
 time2posix.3                                       11-Dec-2022 18:57  4.0K  
 tz-art.html                                        16-Aug-2022 13:07   27K  
 tz-how-to.html                                     16-Aug-2022 12:56   24K  
 tz-link.html                                       16-Aug-2022 13:07   57K  
 tzcode2netbsd                                      11-Jul-2015 18:09  772   
 tzfile.5                                           11-Dec-2022 18:57   18K  
 tzselect.8                                         11-Dec-2022 18:57  3.1K  
 tzselect.ksh                                       15-Oct-2022 20:57   16K  
 tzset.3                                            11-Dec-2022 18:57   10K  
 version                                            11-Dec-2022 18:57    6   
 zdump.8                                            01-Jan-2024 04:11  6.8K  
 zdump.c                                            26-Jul-2023 05:10   33K  
 zic.8                                              01-Jan-2024 04:11   25K  
 zic.c                                              26-Jul-2023 05:10  100K  

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