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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=OLE_Automation_Date</id>
		<title>OLE Automation Date - Revision history</title>
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		<updated>2026-07-23T17:37:44Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=OLE_Automation_Date&amp;diff=30229&amp;oldid=prev</id>
		<title>Jsummers at 14:38, 27 July 2018</title>
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				<updated>2018-07-27T14:38:00Z</updated>
		
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			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 14:38, 27 July 2018&lt;/td&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|subcat=Elements of File Formats&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|subcat=Elements of File Formats&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''OLE Automation Date''' is one of the date/time formats used with Microsoft's ''OLE Automation'' API. It &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;may be &lt;/del&gt;used in [[OLE Property Set]]s, for example.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''OLE Automation Date''' is one of the date/time formats used with Microsoft's ''OLE Automation'' API. It &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is &lt;/ins&gt;used in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;some &lt;/ins&gt;[[OLE Property Set]]s, for example.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;It is also &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;be &lt;/del&gt;known as '''OLEAUT date''', '''VARIANT DATE''', '''variant time''', '''VT_DATE''', etc.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;It is also known as '''OLEAUT date''', '''VARIANT DATE''', '''variant time''', '''VT_DATE''', etc.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Format details ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Format details ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Jsummers</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=OLE_Automation_Date&amp;diff=30226&amp;oldid=prev</id>
		<title>Jsummers: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Elements of File Formats }} '''OLE Automation Date''' is one of the date/time formats used with Microsoft's ''OLE Automation'' API....&quot;</title>
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				<updated>2018-07-27T14:33:51Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Elements of File Formats }} &amp;#039;&amp;#039;&amp;#039;OLE Automation Date&amp;#039;&amp;#039;&amp;#039; is one of the date/time formats used with Microsoft&amp;#039;s &amp;#039;&amp;#039;OLE Automation&amp;#039;&amp;#039; API....&amp;quot;&lt;/p&gt;
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'''OLE Automation Date''' is one of the date/time formats used with Microsoft's ''OLE Automation'' API. It may be used in [[OLE Property Set]]s, for example.&lt;br /&gt;
&lt;br /&gt;
It is also be known as '''OLEAUT date''', '''VARIANT DATE''', '''variant time''', '''VT_DATE''', etc.&lt;br /&gt;
&lt;br /&gt;
== Format details ==&lt;br /&gt;
It is in the form of an 8-byte floating point number.&lt;br /&gt;
&lt;br /&gt;
Positive values correspond to the number of days (including fractions of a day) since &amp;quot;midnight 1899-12-30&amp;quot;. Apparently this means the midnight at the ''beginning'' of 1899-12-30, i.e. 48 hours before the beginning of the year 1900.&lt;br /&gt;
&lt;br /&gt;
Negative values are interpreted in a more complex way.&lt;br /&gt;
&lt;br /&gt;
The valid range is usually considered to be the years 100 through 9999.&lt;br /&gt;
&lt;br /&gt;
Times are usually treated as being in local time.&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [https://blogs.msdn.microsoft.com/ericlippert/2003/09/16/erics-complete-guide-to-vt_date/ Eric’s Complete Guide To VT_DATE]&lt;br /&gt;
* [https://msdn.microsoft.com/en-us/library/cc237549.aspx &amp;amp;#x5b;MS-OAUT&amp;amp;#x5d;], §2.2.25&lt;br /&gt;
* [[Wikipedia: OLE Automation]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Date and time formats]]&lt;br /&gt;
[[Category:Microsoft]]&lt;/div&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

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