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* provided additional information in comments in the include file header

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git-svn-id: trunk@47547 -
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Tomas Hajny 2020-11-24 00:45:00 +00:00
parent 91da9eae17
commit 7169b6d04c
1 changed files with 10 additions and 0 deletions
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10
rtl/objpas/sysutils/tzenv.inc
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@ -6,6 +6,16 @@
Support routines for calculation of local timezone and DST time
offset based on information provided in the environment variable TZ.
There are various ways for specifying the timezone details using the
TZ variable. The more information is provided, the better results.
As an example, the following setting provides full information
including details for DST on/off switching date and time:
TZ=CET-1CEST,3,-1,0,7200,10,-1,0,10800,3600
(CET timezone is 1 hour in advance from UTC, there is DST called CEST,
DST starts on the last Sunday of March at 2am and finishes on the last
Sunday of October at 3am, the DST difference is 1 hour).
However, this is by no means the only supported syntax.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.