Index of /archives/NetBSD/NetBSD-release-9/src/external/public-domain/tz/dist
Name Last modified Size Description
![[PARENTDIR]](/icons/back.gif)
Parent Directory -
![[TXT]](/icons/text.gif)
LICENSE 2017-10-24 10:25 252
factory 2019-11-24 17:30 404
zoneinfo2tdf.pl 2020-10-11 20:26 1.4K
SECURITY 2022-10-20 22:18 773
calendars 2022-10-20 22:18 5.4K
CONTRIBUTING 2023-12-31 03:35 3.2K
README 2023-12-31 03:35 3.0K
antarctica 2023-12-31 03:35 14K
backward 2023-12-31 03:35 7.4K
backzone 2023-12-31 03:35 53K
checklinks.awk 2023-12-31 03:35 1.6K
checktab.awk 2023-12-31 03:35 4.5K
iso3166.tab 2023-12-31 03:35 4.7K
ziguard.awk 2023-12-31 03:35 12K
zone.tab 2023-12-31 03:35 18K
zone1970.tab 2023-12-31 03:35 17K
Makefile 2024-02-19 12:07 52K
NEWS 2024-02-19 12:07 224K
![[ ]](/icons/unknown.gif)
TZDATA_VERSION 2024-02-19 12:07 16
africa 2024-02-19 12:07 68K
asia 2024-02-19 12:07 185K
australasia 2024-02-19 12:07 97K
checknow.awk 2024-02-19 12:07 1.1K
etcetera 2024-02-19 12:07 2.9K
europe 2024-02-19 12:07 175K
leap-seconds.list 2024-02-19 12:07 4.9K
leapseconds 2024-02-19 12:07 3.2K
leapseconds.awk 2024-02-19 12:07 8.7K
northamerica 2024-02-19 12:07 161K
southamerica 2024-02-19 12:07 90K
theory.html 2024-02-19 12:07 62K
version 2024-02-19 12:07 9
zishrink.awk 2024-02-19 12:07 10K
zonenow.tab 2024-02-19 12:07 8.1K
![[DIR]](/icons/folder.gif)
CVS/ 2024-02-19 12:07 -
# Global Time Zone Database (global-tz)
The Global Time Zone Database contains the history of how local time has changed around the world.
It is derived from data in the [IANA Time Zone Database](https://github.com/eggert/tz).
For many years this information could be reliably obtained from the IANA repository.
In recent years however, the data available by default from the IANA repository has been reduced.
This repository primarily exists to reinstate the data that has been effectively removed.
For more info, please see the project home page:
https://github.com/JodaOrg/global-tz
The original README is included below.
-----
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 leading comments in the file "Makefile"
and make any changes needed to make things right for your system,
especially when using a platform other than current 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.