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DateTime.Day Property


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Gets the day of the month represented by this instance.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

Public ReadOnly Property Day As Integer

Property Value

Type: System.Int32

The day component, expressed as a value between 1 and 31.

The Day property always returns the day of the month in the Gregorian calendar, even if the current DateTime value was instantiated using some other calendar or if the current thread culture's default calendar is not the Gregorian calendar. To retrieve the day of the month of a particular date using some other calendar, call that calendar's Calendar.GetDayOfMonth method. The following example uses both the Day property and the HijriCalendar.GetDayOfMonth method to retrieve the day of the month for a DateTime value that is instantiated using the Hijri calendar.

' Return day of 1/13/2009.
Dim dateGregorian As Date = #1/13/2009#
' Displays 13 (Gregorian date).

' Create date of 1/13/2009 using Hijri calendar.
Dim hijri As New HijriCalendar()
Dim dateHijri As Date = New Date(1430, 1, 17, hijri)
' Return day of date created using Hijri calendar.
' Displays 13 (Gregorian date).

' Display day of date in Hijri calendar.
' Displays 17 (Hijri date).

Similarly, the following example uses both the Day property and the HijriCalendar.GetDayOfMonth method to retrieve the day of the month when the current thread culture is ar-SA, which uses Hijri as its default calendar.

Dim originalCulture As CultureInfo = Thread.CurrentThread.CurrentCulture

' Change current culture to ar-SA.
Dim ci As New CultureInfo("ar-SA")
Thread.CurrentThread.CurrentCulture = ci

Dim hijriDate As New Date(1430, 1, 17, _
' Display date (uses calendar of current culture by default).
' Displays 17-01-1430.

' Display day of 17th of Muharram
' Displays 13 (corresponding day of January in Gregorian calendar).

' Display day of 17th of Muharram in Hijri calendar.
' Displays 17.

Thread.CurrentThread.CurrentCulture = originalCulture  

The following example demonstrates the Day property.

Dim moment As New System.DateTime(1999, 1, 13, 3, 57, 32, 11)

' Year gets 1999.
Dim year As Integer = moment.Year

' Month gets 1 (January).
Dim month As Integer = moment.Month

' Day gets 13.
Dim day As Integer = moment.Day

' Hour gets 3.
Dim hour As Integer = moment.Hour

' Minute gets 57.
Dim minute As Integer = moment.Minute

' Second gets 32.
Dim second As Integer = moment.Second

' Millisecond gets 11.
Dim millisecond As Integer = moment.Millisecond
Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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