README revision 1.13
11.7SchristosREADME for the tz distribution 21.7Schristos 31.4Sjtc"What time is it?" -- Richard Deacon as The King 41.4Sjtc"Any time you want it to be." -- Frank Baxter as The Scientist 51.4Sjtc (from the Bell System film "About Time") 61.4Sjtc 71.8SchristosThe Time Zone Database (often called tz or zoneinfo) contains code and 81.8Schristosdata that represent the history of local time for many representative 91.8Schristoslocations around the globe. It is updated periodically to reflect 101.8Schristoschanges made by political bodies to time zone boundaries, UTC offsets, 111.8Schristosand daylight-saving rules. 121.8Schristos 131.12SchristosSee <https://www.iana.org/time-zones/repository/tz-link.html> or the 141.13Schristosfile tz-link.html for how to acquire the code and data. Once acquired, 151.12Schristosread the comments in the file 'Makefile' and make any changes needed 161.5Skleinkto make things right for your system, especially if you are using some 171.5Skleinkplatform other than GNU/Linux. Then run the following commands, 181.5Skleinksubstituting your desired installation directory for "$HOME/tzdir": 191.5Skleink 201.5Skleink make TOPDIR=$HOME/tzdir install 211.13Schristos $HOME/tzdir/usr/bin/zdump -v America/Los_Angeles 221.4Sjtc 231.6SmlelstvHistorical local time information has been included here to: 241.6Smlelstv 251.6Smlelstv* provide a compendium of data about the history of civil time 261.9Schristos that is useful even if not 100% accurate; 271.4Sjtc 281.4Sjtc* give an idea of the variety of local time rules that have 291.4Sjtc existed in the past and thus an idea of the variety that may be 301.4Sjtc expected in the future; 311.4Sjtc 321.4Sjtc* provide a test of the generality of the local time rule description 331.4Sjtc system. 341.4Sjtc 351.4SjtcThe information in the time zone data files is by no means authoritative; 361.9Schristosfixes and enhancements are welcome. Please see the file CONTRIBUTING 371.9Schristosfor details. 381.4Sjtc 391.9SchristosThanks to these Time Zone Caballeros who've made major contributions to the 401.9Schristostime conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; 411.4SjtcGuy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to 421.4SjtcMichael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales 431.4Sjtcfor testing work, and to Gwillim Law for checking local mean time data. 441.8SchristosThanks in particular to Arthur David Olson, the project's founder and first 451.9Schristosmaintainer, to whom the time zone community owes the greatest debt of all. 461.4SjtcNone of them are responsible for remaining errors. 471.4Sjtc 481.10Schristos----- 491.10Schristos 501.10SchristosThis file is in the public domain, so clarified as of 2009-05-17 by 511.10SchristosArthur David Olson. The other files in this distribution are either 521.10Schristospublic domain or BSD licensed; see the file LICENSE for details. 53