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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - toLocaleDateString() resolves incorrect date for some old dates"
href="https://bugs.webkit.org/show_bug.cgi?id=161623">161623</a>
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<th>Summary</th>
<td>toLocaleDateString() resolves incorrect date for some old dates
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>OS X 10.11
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>JavaScriptCore
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>medikoo+webkit.org@medikoo.com
</td>
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<p>
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<pre>Running following:
(new Date(1969, 8, 26)).toLocaleDateString()
Results with:
"9/25/1969"
While it should result with:
"9/26/1969"
It goes up to around 1977:
<span class="quote">> (new Date(1977, 8, 26)).toLocaleDateString()</span >
< "9/25/1977"
<span class="quote">> (new Date(1978, 8, 26)).toLocaleDateString()</span >
< "9/26/1978"
Same issue affects V8, although it gets dates after 1970 right -> <a href="https://bugs.chromium.org/p/v8/issues/detail?id=5353">https://bugs.chromium.org/p/v8/issues/detail?id=5353</a>
No such issue is observed on Firefox.</pre>
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