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DatePart Function

office 365 dev account|Last Updated: 6/12/2017
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Returns a Variant ( Integer ) containing the specified part of a given date. SyntaxDatePart( interval,date [ ,firstdayofweek [ ,firstweekofyear ]] ) The DatePart function syntax has thesenamed arguments:

PartDescription
intervalRequired. String expression that is the interval of time you want to return.
dateRequired. Variant ( Date ) value that you want to evaluate.
firstdayofweekOptional. A constant that specifies the first day of the week. If not specified, Sunday is assumed.
firstweekofyearOptional. A constant that specifies the first week of the year. If not specified, the first week is assumed to be the week in which January 1 occurs.

Settings The intervalargument has these settings:

SettingDescription
yyyyYear
qQuarter
mMonth
yDay of year
dDay
wWeekday
wwWeek
hHour
nMinute
sSecond

The firstdayofweek argument has these settings:

ConstantValueDescription
vbUseSystem0Use the NLS API setting.
vbSunday1Sunday (default)
vbMonday2Monday
vbTuesday3Tuesday
vbWednesday4Wednesday
vbThursday5Thursday
vbFriday6Friday
vbSaturday7Saturday

The firstweekofyear argument has these settings:

ConstantValueDescription
vbUseSystem0Use the NLS API setting.
vbFirstJan11Start with week in which January 1 occurs (default).
vbFirstFourDays2Start with the first week that has at least four days in the new year.
vbFirstFullWeek3Start with first full week of the year.

Remarks You can use the DatePart function to evaluate a date and return a specific interval of time. For example, you might use DatePart to calculate the day of the week or the current hour. The firstdayofweek argument affects calculations that use the "w" and "ww" interval symbols. If date is adate literal, the specified year becomes a permanent part of that date. However, if date is enclosed in double quotation marks (" "), and you omit the year, the current year is inserted in your code each time the date expression is evaluated. This makes it possible to write code that can be used in different years.

Note For date, if the Calendar property setting is Gregorian, the supplied date must be Gregorian. If the calendar is Hijri, the supplied date must be Hijri.

The returned date part is in the time period units of the current Arabic calendar. For example, if the current calendar is Hijri and the date part to be returned is the year, the year value is a Hijri year.

Example

This example takes a date and, using the DatePart function, displays the quarter of the year in which it occurs.

Dim TheDate As Date    ' Declare variables.
Dim Msg    
TheDate = InputBox("Enter a date:")
Msg = "Quarter: " &; DatePart("q", TheDate)
MsgBox Msg
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