DatePart

This function determines a specified part of a specified date.

Syntax

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

Parameters

interval

Required. String expression that is the interval of time you want to return. The following table shows the possible values for the interval parameter.

Setting	Description
yyyy	Year
q	Quarter
m	Month
y	Day of year
d	Day
w	Weekday
ww	Week of year
h	Hour
m	Minute
s	Second

date

Required. Date expression you want to evaluate.

firstdayofweek

Optional. Constant that specifies the day of the week. If not specified, Sunday is assumed. The following table shows the possible values for the firstdayofweek parameter.

Constant	Value	Description
vbUseSystem	0	Use National Language Support (NLS) API setting
vbSunday	1	Sunday (default)
vbMonday	2	Monday
vbTuesday	3	Tuesday
vbWednesday	4	Wednesday
vbThursday	5	Thursday
vbFriday	6	Friday
vbSaturday	7	Saturday

firstweekofyear

Optional. 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. The following table shows the possible values for the firstweekofyear parameter.

Constant	Value	Description
vbUseSystem	0	Use National Language Support (NLS) API setting.
vbFirstJan1	1	Start with the week in which January 1 occurs (default).
vbFirstFourDays	2	Start with the week that has at least four days in the new year.
vbFirstFullWeek	3	Start with the first full week of the new year.

Return Values

Returns a specified part of a specified date.

Remarks

Use DatePart to evaluate a date and return a specific interval of time. For example, you can use DatePart to calculate the day of the week or the current hour.

The firstdayofweek parameter affects calculations that use the w and ww interval symbols.

If date is a date literal, the specified year becomes a permanent part of that date. However, if date is enclosed in 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.