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	<title>API:GetFirstDayOfWeek - Revision history</title>
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	<updated>2026-10-19T18:02:15Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.returnofreckoning.com/index.php?title=API:GetFirstDayOfWeek&amp;diff=30384&amp;oldid=prev</id>
		<title>Maintenance script: UI Lua API import (WAR 1.4.8)</title>
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		<updated>2026-10-16T19:43:42Z</updated>

		<summary type="html">&lt;p&gt;UI Lua API import (WAR 1.4.8)&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{LuaApi|group=Time}}&lt;br /&gt;
Returns the first day of the week according to the computer&amp;#039;s regional settings.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
dayIndex = GetFirstDayOfWeek()&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Arguments ==&lt;br /&gt;
None.&lt;br /&gt;
&lt;br /&gt;
== Returns ==&lt;br /&gt;
;dayIndex : &amp;lt;code&amp;gt;number&amp;lt;/code&amp;gt; – 1 to 7: 1 is Monday, 7 is Sunday.&lt;br /&gt;
&lt;br /&gt;
== Details ==&lt;br /&gt;
* The value comes from the Windows &amp;quot;first day of week&amp;quot; setting of the current thread locale. It uses the same numbering as [[API:GetWeekDayName|GetWeekDayName]].&lt;br /&gt;
* If the setting cannot be read, 1 (Monday) is returned.&lt;br /&gt;
* Arguments are not checked; anything passed is ignored.&lt;br /&gt;
&lt;br /&gt;
== Errors ==&lt;br /&gt;
None.&lt;br /&gt;
&lt;br /&gt;
== Example ==&lt;br /&gt;
From &amp;lt;code&amp;gt;ea_guildwindow/source/calendar.lua&amp;lt;/code&amp;gt;:&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
local dayIndex = GetFirstDayOfWeek()&lt;br /&gt;
for labelIndex = 1, 7&lt;br /&gt;
do&lt;br /&gt;
    LabelSetText( &amp;quot;GuildWindowCalendarDOTW&amp;quot;..labelIndex, wstring.sub( GetWeekDayName( dayIndex, true ), 0, 1 ) )&lt;br /&gt;
    dayIndex = dayIndex + 1&lt;br /&gt;
    if ( dayIndex &amp;gt; 7 )&lt;br /&gt;
    then&lt;br /&gt;
        dayIndex = dayIndex - 7&lt;br /&gt;
    end&lt;br /&gt;
end&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
* [[API:GetWeekDayName|GetWeekDayName]]&lt;br /&gt;
* [[API:GetTodaysDate|GetTodaysDate]]&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
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