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<?xml version="1.0" encoding="UTF-8"?>
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<helpdocument version="1.0">
<meta>
<topic id="textsbasicshared03030105xml" indexer="include" status="PUBLISH">
<title id="tit" xml-lang="en-US">WeekDay Function</title>
<filename>/text/sbasic/shared/03030105.xhp</filename>
</topic>
<history>
<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created>
</history>
</meta>
<body>
<section id="weekday">
<bookmark xml-lang="en-US" branch="index" id="bm_id3153127">
<bookmark_value>WeekDay function</bookmark_value>
</bookmark>
<h1 id="hd_id3153127"><variable id="WeekDay_H1"><link href="text/sbasic/shared/03030105.xhp">WeekDay Function</link></variable></h1>
<paragraph role="paragraph" id="par_id3146795" xml-lang="en-US">This function returns the number corresponding to the weekday represented by a serial date number that is generated by the <literal>DateSerial</literal> or the <literal>DateValue</literal> functions.</paragraph>
</section>
<note id="par_id91620239579003">This help page describes the <literal>WeekDay</literal> function used in Basic scripts. If you are interested in the <literal>WeekDay</literal> function used in %PRODUCTNAME Calc, refer to <link href="text/scalc/01/func_weekday.xhp">this help page</link>.</note>
<embed href="text/sbasic/shared/00000003.xhp#functsyntax"/>
<bascode>
<paragraph role="bascode" id="par_id3149655" xml-lang="en-US">WeekDay (SerialDate, [FirstDayOfWeek])</paragraph>
</bascode>
<embed href="text/sbasic/shared/00000003.xhp#functparameters"/>
<paragraph role="paragraph" id="par_id3151042" xml-lang="en-US">
<emph>SerialDate:</emph> Integer expression that contains the serial date number that is used to calculate the day of the week.</paragraph>
<paragraph role="paragraph" id="par_id351619718411921">
<emph>FirstDayOfWeek:</emph> Integer value indicating which weekday should be considered as the first day of the week. The default value is <emph>0</emph>, meaning that the system locale settings are used to determine the first day of the week.</paragraph>
<paragraph role="paragraph" id="par_id411619718769819">The parameter <emph>FirstDayOfWeek</emph> accepts values ranging from 0 to 7. The table below describes the meaning of each possible value:</paragraph>
<section id="WeekDay_constants">
<table id="tab_id191619718816238">
<tablerow>
<tablecell>
<paragraph id="par_id651619719561092" role="tablehead">Value</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id251619718816238" role="tablehead">VBA Constant</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id711619718816238" role="tablehead">Description</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id731619718847838" role="tablecontent" localize="false">0</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718847702" role="tablecontent" localize="false">vbUseSystemDayOfWeek</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id521619718818972" role="tablecontent">Use system locale settings</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719164117" role="tablecontent" localize="false">1</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718847885" role="tablecontent" localize="false">vbSunday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719174897" role="tablecontent">Sunday (default)</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719164241" role="tablecontent" localize="false">2</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718844633" role="tablecontent" localize="false">vbMonday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719173258" role="tablecontent">Monday</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719168871" role="tablecontent" localize="false">3</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718840122" role="tablecontent" localize="false">vbTuesday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719174633" role="tablecontent">Tuesday</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719162897" role="tablecontent" localize="false">4</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718843362" role="tablecontent" localize="false">vbWednesday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719173641" role="tablecontent">Wednesday</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719168022" role="tablecontent" localize="false">5</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718849336" role="tablecontent" localize="false">vbThursday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719170014" role="tablecontent">Thursday</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719164776" role="tablecontent" localize="false">6</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718849699" role="tablecontent" localize="false">vbFriday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719174271" role="tablecontent">Friday</paragraph>
</tablecell>
</tablerow>
<tablerow>
<tablecell>
<paragraph id="par_id821619719169044" role="tablecontent" localize="false">7</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id731619718849001" role="tablecontent" localize="false">vbSaturday</paragraph>
</tablecell>
<tablecell>
<paragraph id="par_id581619719176055" role="tablecontent">Saturday</paragraph>
</tablecell>
</tablerow>
</table>
</section>
<note id="par_id451619720094202">The VBA constants listed above are only available if VBA support has been enabled. For more information, read the <link href="text/sbasic/shared/03103350.xhp">VBASupport Statement</link> help page.</note>
<embed href="text/sbasic/shared/00000003.xhp#functvalue"/>
<paragraph role="paragraph" id="par_id3154125" xml-lang="en-US">Integer</paragraph>
<embed href="text/sbasic/shared/00000003.xhp#errorcode"/>
<embed href="text/sbasic/shared/00000003.xhp#err5"/>
<embed href="text/sbasic/shared/00000003.xhp#functexample"/>
<paragraph role="paragraph" id="par_id3159254" xml-lang="en-US">The following example uses the function <literal>Now()</literal> to determine the current weekday.</paragraph>
<bascode>
<paragraph role="bascode" id="par_id3145749" localize="false">Sub ExampleWeekDay</paragraph>
<paragraph role="bascode" id="par_id3147426" localize="false"> Dim sDay As String</paragraph>
<paragraph role="bascode" id="par_id3148576"> ' Return And display the day of the week</paragraph>
<paragraph role="bascode" id="par_id3155412" localize="false"> Select Case WeekDay( Now )</paragraph>
<paragraph role="bascode" id="par_id3151117"> Case 1: sDay="Sunday"</paragraph>
<paragraph role="bascode" id="par_id3153952"> Case 2: sDay="Monday"</paragraph>
<paragraph role="bascode" id="par_id3153157"> Case 3: sDay="Tuesday"</paragraph>
<paragraph role="bascode" id="par_id3154942"> Case 4: sDay="Wednesday"</paragraph>
<paragraph role="bascode" id="par_id3155416"> Case 5: sDay="Thursday"</paragraph>
<paragraph role="bascode" id="par_id3154015"> Case 6: sDay="Friday"</paragraph>
<paragraph role="bascode" id="par_id3153707"> Case 7: sDay="Saturday"</paragraph>
<paragraph role="bascode" id="par_id3155065" localize="false"> End Select</paragraph>
<paragraph role="bascode" id="par_id3148993"> MsgBox "" + sDay,64,"Today Is"</paragraph>
<paragraph role="bascode" id="par_id3149019" localize="false">End Sub</paragraph>
</bascode>
<paragraph role="paragraph" id="par_id891619721286262">The following example illustrates the use <emph>FirstDayOfWeek</emph> parameter, assuming that Tuesday is the first day of the week.</paragraph>
<bascode>
<paragraph role="bascode" localize="false" id="bas_id71619721723893">Dim someDay As Long</paragraph>
<paragraph role="bascode" id="bas_id791619721724107">' The date January 1st 2021 was a Friday</paragraph>
<paragraph role="bascode" localize="false" id="bas_id441619721724360">someDay = DateSerial(2021, 01, 01)</paragraph>
<paragraph role="bascode" id="bas_id991619721724568">' Prints "6" assuming Sunday is the first day of the week</paragraph>
<paragraph role="bascode" localize="false" id="bas_id291619721724784">MsgBox WeekDay(someDay)</paragraph>
<paragraph role="bascode" id="bas_id31619721725024">' Prints "4" assuming Tuesday is the first day of the week</paragraph>
<paragraph role="bascode" localize="false" id="bas_id301619721725289">MsgBox WeekDay(someDay, 3)</paragraph>
</bascode>
<section id="relatedtopics">
<embed href="text/sbasic/shared/03030101.xhp#DateSerial_H1"/>
<embed href="text/sbasic/shared/03030102.xhp#DateValue_H1"/>
<embed href="text/sbasic/shared/03030203.xhp#Now_H1"/>
<embed href="text/scalc/01/func_weekday.xhp#weekday"/>
</section>
</body>
</helpdocument>
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