21 lines
868 B
Plaintext
21 lines
868 B
Plaintext
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Timezones
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=========
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The new version supports time zones and daylight saving time (DST).
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Currently we support only a single timezone. We use the UNIX timezone
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format which is usually specified in an environment variable TZ.
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Note that for timezone information you can have different
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representation, either relative to Universal Time Coordinated (UTC) or
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to International Atomic Time (TAI), the latter contains leap seconds.
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Since most systems today use UTC *and* the clock of a microcontroller
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is typically not accurate enough to care about leap seconds, we're using
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timezone files relative to UTC.
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Wikipedia has a very good treatment of the public timezone database in
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https://en.wikipedia.org/wiki/Tz_database
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The format of timezone strings is described in the Linux manual page
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tzset(3). The timezone specification for Europe/Vienna is
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CET-1CEST,M3.5.0,M10.5.0/3
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