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<title>DateTime.parse — Ludic</title>
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<meta name="description" content="Parse text into an instant; -1 on failure.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-datetime.html">DateTime</a> <span>›</span> <span class="here">DateTime.parse</span></div>
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<div class="item-head">
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">DateTime.parse</h1>
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</div>
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<code class="sig">DateTime.parse(text, pattern) -> int</code>
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<div class="desc"><p>Parses <code>text</code> into a <code>DateTime</code> by reading each token of <code>pattern</code> from the fixed position the pattern lays out; missing fields default to 1970-01-01 00:00:00. Returns <code>-1</code> if a digit was expected but not found (so the caller can detect malformed input). The pattern <b>must be a string literal</b> and uses the same tokens as <code>DateTime.format</code>. <code>text</code> must match the pattern's fixed-width layout.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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handler Step phase Update {
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let t = DateTime.parse("2026-08-30 07:05:09", "YYYY-MM-DD HH:mm:ss")
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if t < 0 {
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# malformed input
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}
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}
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}</pre></div>
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