VBA - DatePart Function

A Function, which returns the specific part of the given date.

Syntax

DatePart(interval,date[,firstdayofweek[,firstweekofyear]]) 

Parameter Description

• Interval − A required parameter. It can take the following values.

  • d - day of the year.

  • m - month of the year

  • y - year of the year

  • yyyy - year

  • w - weekday

  • ww - week

  • q - quarter

  • h - hour

  • n - minute

  • s - second

• Date1 − A required parameter.

• Firstdayofweek − An optional parameter. Specifies the first day of the week. It can take the following values.

  • 0 = vbUseSystemDayOfWeek - Use National Language Support (NLS) API setting

  • 1 = vbSunday - Sunday

  • 2 = vbMonday - Monday

  • 3 = vbTuesday - Tuesday

  • 4 = vbWednesday - Wednesday

  • 5 = vbThursday - Thursday

  • 6 = vbFriday - Friday

  • 7 = vbSaturday - Saturday

• Firstdayofyear − An optional parameter. Specifies the first day of the year. It can take the following values.

  • 0 = vbUseSystem - Use National Language Support (NLS) API setting

  • 1 = vbFirstJan1 - Start with the week in which January 1 occurs (default)

  • 2 = vbFirstFourDays - Start with the week that has at least four days in the new year

  • 3 = vbFirstFullWeek - Start with the first full week of the new year

Example

Add a button and add the following function.

Private Sub Constant_demo_Click()
   Dim Quarter as Variant
   Dim DayOfYear as Variant
   Dim WeekOfYear as Variant
  
   Date1 = "2013-01-15"
   Quarter    = DatePart("q", Date1)
   
   msgbox("Line 1 : " & Quarter)
   DayOfYear  = DatePart("y", Date1)
   
   msgbox("Line 2 : " & DayOfYear)
   WeekOfYear = DatePart("ww", Date1)
   
   msgbox("Line 3 : " & WeekOfYear)
   msgbox("Line 4 : " & DatePart("m",Date1))  
End Sub

When you execute the above function, it produces the following output.

Line 1 : 1
Line 2 : 15
Line 3 : 3
Line 4 : 1