README revision 150c1068518286ac262991bc10c3fcfe3048be0d
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian MaederCopyright 2006 Sun Microsystems, Inc. All rights reserved.
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian MaederUse is subject to license terms.
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian Maeder#ident "%Z%%M% %I% %E% SMI"
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian MaederThe /usr/share/lib/zoneinfo/src directory contains zoneinfo timezone source
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian Maederfiles. These source files have been compiled using zic(1M) to create
891a081e38584dfb59697349fbf0aba2c4d4e1e2Christian Maederthe zoneinfo data files in /usr/share/lib/zoneinfo. The zic command can be
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiused with the zoneinfo source files to create additional data files.
0b7c8279c741857d1681160f8b4144a9430ffa7fTill MossakowskiThe zoneinfo files track the Olson public source provided at
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiftp://elsie.nci.nih.gov/pub/, therefore zoneinfo files may be added and
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiremoved as the Solaris source is updated. The current Solaris release of
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskithe zoneinfo files is based on tzdata2006p.tar.gz.
0b7c8279c741857d1681160f8b4144a9430ffa7fTill MossakowskiThe /usr/share/lib/zoneinfo/GMT[+-]* timezones listed below have been
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiremoved from the release. Replace usage of the
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowski/usr/share/lib/zoneinfo/GMT[+-]* files with the equivalent quoted timezone
d1126d58419412635564085406d3779325b33ae0Till Mossakowski(see environ(5)). Note the signs of the offsets of the equivalent quoted
6f08007ef2919f70c396c491f349ff3e536900bbChristian Maedertimezone are reversed from the signs of the /usr/share/lib/zoneinfo/GMT[+-]*
8731f7b93b26083dc34a2c0937cd6493b42f2c2cTill MossakowskiFor example, replace TZ=:GMT+1, with TZ="<GMT-1>-1". (The colon (:) is
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskisignificant. Without the colon, for example TZ=GMT+1, an unquoted timezone
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiis used; unquoted timezones are not affected by the removal of the zoneinfo
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskitimezone files listed below.)
0b7c8279c741857d1681160f8b4144a9430ffa7fTill MossakowskiThe following files have been removed from the release:
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian MaederAs zoneinfo timezones are updated, the savings/daylight transition rules
2b4130336e941b7d01c78a6da55449a4c6eca609Till Mossakowskiand timezone name abbreviations may change. This can affect how
bd5ff898eef380d414edd0e8e392da280d35e047Christian Maederthe times are calculated in the local timezone. Therefore the interpretation
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian Maederof a time_t value can vary amongst Solaris releases that use different
0b7c8279c741857d1681160f8b4144a9430ffa7fTill Mossakowskiversions of the zoneinfo timezones.
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian MaederThe zoneinfo timezone data files do not transition past
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian MaederTue Jan 19 03:14:07 2038 GMT. Therefore for 64-bit applications using
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian Maederzoneinfo timezones, calculations beyond this date may not use the correct
78d4b9e3558a2523c3335b1399385ac7d246f0c1Christian Maederoffset from standard time, and could return incorrect values. This affects
8731f7b93b26083dc34a2c0937cd6493b42f2c2cTill Mossakowski64-bit versions of interfaces such as ascftime(3C), cftime(3C), ctime(3C),
8731f7b93b26083dc34a2c0937cd6493b42f2c2cTill Mossakowskigetdate(3C), ftime(3C), mktime(3C), and localtime(3C).
8731f7b93b26083dc34a2c0937cd6493b42f2c2cTill MossakowskiFor more information see zic(1M), zdump(1M), environ(5), TIMEZONE(4),
8731f7b93b26083dc34a2c0937cd6493b42f2c2cTill Mossakowskictime(3C), and mktime(3C) man pages.