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<base href="https://bugs.documentfoundation.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - DAY(), MONTH() and YEAR() functions don't handle Gregorian cut-over"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=122158">122158</a>
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<th>Summary</th>
<td>DAY(), MONTH() and YEAR() functions don't handle Gregorian cut-over
</td>
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<th>Product</th>
<td>LibreOffice
</td>
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<th>Version</th>
<td>Inherited From OOo
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>UNCONFIRMED
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Calc
</td>
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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</tr>
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<th>Reporter</th>
<td>erack@redhat.com
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</tr></table>
<p>
<div>
<pre>In A1 enter date 1582-10-16
In A2 enter date 1582-10-15
Select A1:A2 and pull down a few cells, resulting dates are 1582-10-04,
1582-10-03, ..., correct due to the Gregorian calendar cut-over.
In B2 enter =DAY(A2) => 15
In B3 enter =DAY(A2) => 14 (wrong)
Similar for a date of 1582-09-30 the MONTH() function calculates 10 instead of
9.
For a date of 1581-12-31 the YEAR() function calculates 1582 instead of 1581.
The DAY(), MONTH() and YEAR() functions do not take the 10 days gap at the
Gregorian calendar's cut-over date into account. The date serial numbers and
number formatter display values are correct, hence subtracting 1582-10-04 from
1582-10-15 (i.e. =A2-A3) is indeed one day, and adding one day to 1582-10-04
(i.e. =A3+1) results in 1582-10-15.</pre>
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