DateTime::TimeZone::OlsonDB - phpMan

Che Dong
NAME
    DateTime::TimeZone::OlsonDB - An object to represent an Olson time zone
    database

VERSION
    version 2.51

SYNOPSIS
      none yet

DESCRIPTION
    This module parses the Olson database time zone definition files and
    creates various objects representing time zone data.

    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.

    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.

    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".

USAGE
    Not yet documented. This stuff is a mess.

SUPPORT
    Bugs may be submitted at
    <https://github.com/houseabsolute/DateTime-TimeZone/issues>.

SOURCE
    The source code repository for DateTime-TimeZone can be found at
    <https://github.com/houseabsolute/DateTime-TimeZone>.

AUTHOR
    Dave Rolsky <autarch AT urth.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2021 by Dave Rolsky.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.

    The full text of the license can be found in the LICENSE file included
    with this distribution.