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.IX Title "DateTime::TimeZone::OlsonDB 3pm"
.TH DateTime::TimeZone::OlsonDB 3pm 2024-02-02 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
DateTime::TimeZone::OlsonDB \- An object to represent an Olson time zone database
.SH VERSION
.IX Header "VERSION"
version 2.62
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&  none yet
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This module parses the Olson database time zone definition files and creates
various objects representing time zone data.
.PP
Each time zone is broken down into several parts.  The first piece is an
observance, which is an offset from UTC and an abbreviation.  A single zone may
contain many observances, reflecting historical changes in that time zone over
time.  An observance may also refer to a set of rules.
.PP
Rules are named, and may apply to many different zones.  For example, the "US"
rules apply to most of the time zones in the US, unsurprisingly.  Rules are
made of an offset from standard time and a definition of when that offset
changes.  Changes can be a one time thing, or they can recur at regular times
through a span of years.
.PP
Each rule may have an associated letter, which is used to generate an
abbreviated name for the time zone, along with the offset's abbreviation.  For
example, if the offset's abbreviation is "C%sT", and the a rule specifies the
letter "S", then the abbreviation when that rule is in effect is "CST".
.SH USAGE
.IX Header "USAGE"
Not yet documented.  This stuff is a mess.
.SH SUPPORT
.IX Header "SUPPORT"
Bugs may be submitted at <https://github.com/houseabsolute/DateTime\-TimeZone/issues>.
.SH SOURCE
.IX Header "SOURCE"
The source code repository for DateTime-TimeZone can be found at <https://github.com/houseabsolute/DateTime\-TimeZone>.
.SH AUTHOR
.IX Header "AUTHOR"
Dave Rolsky <autarch@urth.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2024 by Dave Rolsky.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.PP
The full text of the license can be found in the
\&\fILICENSE\fR file included with this distribution.