Files
google-apis-rs/chrono/offset/index.html
2021-04-02 00:20:57 +08:00

30 lines
6.3 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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="API documentation for the Rust `offset` mod in crate `chrono`."><meta name="keywords" content="rust, rustlang, rust-lang, offset"><title>chrono::offset - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><a href='../../chrono/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Module offset</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li></ul></div><p class="location"><a href="../index.html">chrono</a></p><div id="sidebar-vars" data-name="offset" data-ty="mod" data-relpath="../"></div><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"></div><button type="button" class="help-button">?</button>
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Module <a href="../index.html">chrono</a>::<wbr><a class="mod" href="">offset</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span><a class="srclink" href="../../src/chrono/offset/mod.rs.html#4-531" title="goto source code">[src]</a></span></h1><div class="docblock"><p>The time zone, which calculates offsets from the local time to UTC.</p>
<p>There are four operations provided by the <code>TimeZone</code> trait:</p>
<ol>
<li>Converting the local <code>NaiveDateTime</code> to <code>DateTime&lt;Tz&gt;</code></li>
<li>Converting the UTC <code>NaiveDateTime</code> to <code>DateTime&lt;Tz&gt;</code></li>
<li>Converting <code>DateTime&lt;Tz&gt;</code> to the local <code>NaiveDateTime</code></li>
<li>Constructing <code>DateTime&lt;Tz&gt;</code> objects from various offsets</li>
</ol>
<p>1 is used for constructors. 2 is used for the <code>with_timezone</code> method of date and time types.
3 is used for other methods, e.g. <code>year()</code> or <code>format()</code>, and provided by an associated type
which implements <code>Offset</code> (which then passed to <code>TimeZone</code> for actual implementations).
Technically speaking <code>TimeZone</code> has a total knowledge about given timescale,
but <code>Offset</code> is used as a cache to avoid the repeated conversion
and provides implementations for 1 and 3.
An <code>TimeZone</code> instance can be reconstructed from the corresponding <code>Offset</code> instance.</p>
</div><h2 id="structs" class="section-header"><a href="#structs">Structs</a></h2>
<table><tr class="module-item"><td><a class="struct" href="struct.FixedOffset.html" title="chrono::offset::FixedOffset struct">FixedOffset</a></td><td class="docblock-short"><p>The time zone with fixed offset, from UTC-23:59:59 to UTC+23:59:59.</p>
</td></tr><tr class="module-item"><td><a class="struct" href="struct.Local.html" title="chrono::offset::Local struct">Local</a></td><td class="docblock-short"><p>The local timescale. This is implemented via the standard <code>time</code> crate.</p>
</td></tr><tr class="module-item"><td><a class="struct" href="struct.Utc.html" title="chrono::offset::Utc struct">Utc</a></td><td class="docblock-short"><p>The UTC time zone. This is the most efficient time zone when you don't need the local time.
It is also used as an offset (which is also a dummy type).</p>
</td></tr></table><h2 id="enums" class="section-header"><a href="#enums">Enums</a></h2>
<table><tr class="module-item"><td><a class="enum" href="enum.LocalResult.html" title="chrono::offset::LocalResult enum">LocalResult</a></td><td class="docblock-short"><p>The conversion result from the local time to the timezone-aware datetime types.</p>
</td></tr></table><h2 id="traits" class="section-header"><a href="#traits">Traits</a></h2>
<table><tr class="module-item"><td><a class="trait" href="trait.Offset.html" title="chrono::offset::Offset trait">Offset</a></td><td class="docblock-short"><p>The offset from the local time to UTC.</p>
</td></tr><tr class="module-item"><td><a class="trait" href="trait.TimeZone.html" title="chrono::offset::TimeZone trait">TimeZone</a></td><td class="docblock-short"><p>The time zone.</p>
</td></tr></table></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="chrono"></div>
<script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html>