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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="The time zone, which calculates offsets from the local time to UTC."><title>chrono::offset - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="chrono" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../chrono/index.html">chrono</a><span class="version">0.4.31</span></h2></div><h2 class="location"><a href="#">Module offset</a></h2><div class="sidebar-elems"><section><ul class="block"><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li></ul></section><h2><a href="../index.html">In crate chrono</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../chrono/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Module <a href="../index.html">chrono</a>::<wbr><a class="mod" href="#">offset</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/chrono/offset/mod.rs.html#4-601">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The time zone, which calculates offsets from the local time to UTC.</p>
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<p>There are four operations provided by the <code>TimeZone</code> trait:</p>
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<ol>
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<li>Converting the local <code>NaiveDateTime</code> to <code>DateTime<Tz></code></li>
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<li>Converting the UTC <code>NaiveDateTime</code> to <code>DateTime<Tz></code></li>
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<li>Converting <code>DateTime<Tz></code> to the local <code>NaiveDateTime</code></li>
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<li>Constructing <code>DateTime<Tz></code> objects from various offsets</li>
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</ol>
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<p>1 is used for constructors. 2 is used for the <code>with_timezone</code> method of date and time types.
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3 is used for other methods, e.g. <code>year()</code> or <code>format()</code>, and provided by an associated type
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which implements <code>Offset</code> (which then passed to <code>TimeZone</code> for actual implementations).
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Technically speaking <code>TimeZone</code> has a total knowledge about given timescale,
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but <code>Offset</code> is used as a cache to avoid the repeated conversion
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and provides implementations for 1 and 3.
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An <code>TimeZone</code> instance can be reconstructed from the corresponding <code>Offset</code> instance.</p>
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</div></details><h2 id="structs" class="section-header"><a href="#structs">Structs</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.FixedOffset.html" title="struct chrono::offset::FixedOffset">FixedOffset</a></div><div class="desc docblock-short">The time zone with fixed offset, from UTC-23:59:59 to UTC+23:59:59.</div></li><li><div class="item-name"><a class="struct" href="struct.Local.html" title="struct chrono::offset::Local">Local</a></div><div class="desc docblock-short">The local timescale. This is implemented via the standard <code>time</code> crate.</div></li><li><div class="item-name"><a class="struct" href="struct.Utc.html" title="struct chrono::offset::Utc">Utc</a></div><div class="desc docblock-short">The UTC time zone. This is the most efficient time zone when you don’t need the local time.
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It is also used as an offset (which is also a dummy type).</div></li></ul><h2 id="enums" class="section-header"><a href="#enums">Enums</a></h2><ul class="item-table"><li><div class="item-name"><a class="enum" href="enum.LocalResult.html" title="enum chrono::offset::LocalResult">LocalResult</a></div><div class="desc docblock-short">The conversion result from the local time to the timezone-aware datetime types.</div></li></ul><h2 id="traits" class="section-header"><a href="#traits">Traits</a></h2><ul class="item-table"><li><div class="item-name"><a class="trait" href="trait.Offset.html" title="trait chrono::offset::Offset">Offset</a></div><div class="desc docblock-short">The offset from the local time to UTC.</div></li><li><div class="item-name"><a class="trait" href="trait.TimeZone.html" title="trait chrono::offset::TimeZone">TimeZone</a></div><div class="desc docblock-short">The time zone.</div></li></ul></section></div></main></body></html> |