1309583SglebiusREADME for the tz distribution 2309583Sglebius 3309583Sglebius"What time is it?" -- Richard Deacon as The King 4309583Sglebius"Any time you want it to be." -- Frank Baxter as The Scientist 5309583Sglebius (from the Bell System film "About Time") 6309583Sglebius 7309583SglebiusThe Time Zone Database (often called tz or zoneinfo) contains code and 8309583Sglebiusdata that represent the history of local time for many representative 9309583Sglebiuslocations around the globe. It is updated periodically to reflect 10309583Sglebiuschanges made by political bodies to time zone boundaries, UTC offsets, 11309583Sglebiusand daylight-saving rules. 12309583Sglebius 13325324SgordonSee <https://www.iana.org/time-zones/repository/tz-link.html> or the 14325324Sgordonfile tz-link.htm for how to acquire the code and data. Once acquired, 15325324Sgordonread the comments in the file 'Makefile' and make any changes needed 16309583Sglebiusto make things right for your system, especially if you are using some 17309583Sglebiusplatform other than GNU/Linux. Then run the following commands, 18309583Sglebiussubstituting your desired installation directory for "$HOME/tzdir": 19309583Sglebius 20309583Sglebius make TOPDIR=$HOME/tzdir install 21309583Sglebius $HOME/tzdir/etc/zdump -v America/Los_Angeles 22309583Sglebius 23309583SglebiusHistorical local time information has been included here to: 24309583Sglebius 25309583Sglebius* provide a compendium of data about the history of civil time 26309583Sglebius that is useful even if not 100% accurate; 27309583Sglebius 28309583Sglebius* give an idea of the variety of local time rules that have 29309583Sglebius existed in the past and thus an idea of the variety that may be 30309583Sglebius expected in the future; 31309583Sglebius 32309583Sglebius* provide a test of the generality of the local time rule description 33309583Sglebius system. 34309583Sglebius 35309583SglebiusThe information in the time zone data files is by no means authoritative; 36309583Sglebiusfixes and enhancements are welcome. Please see the file CONTRIBUTING 37309583Sglebiusfor details. 38309583Sglebius 39309583SglebiusThanks to these Time Zone Caballeros who've made major contributions to the 40309583Sglebiustime conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; 41309583SglebiusGuy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to 42309583SglebiusMichael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales 43309583Sglebiusfor testing work, and to Gwillim Law for checking local mean time data. 44309583SglebiusThanks in particular to Arthur David Olson, the project's founder and first 45309583Sglebiusmaintainer, to whom the time zone community owes the greatest debt of all. 46309583SglebiusNone of them are responsible for remaining errors. 47309583Sglebius 48309583Sglebius----- 49309583Sglebius 50309583SglebiusThis file is in the public domain, so clarified as of 2009-05-17 by 51309583SglebiusArthur David Olson. The other files in this distribution are either 52309583Sglebiuspublic domain or BSD licensed; see the file LICENSE for details. 53