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# DateDiff Function

Returns the number of date or time intervals between two given date values.

### Syntax:

    DateDiff (interval As String, date1 As Date, date2 As Date [, firstDayOfWeek As Integer [, firstWeekOfYear As Integer]]) As Double

## वापसी मूल्य:

A number.

### Parameters:

interval - A string expression from the following table, specifying the date or time interval.

interval (string value) | स्पष्टीकरण
--- | ---
yyyy | वर्ष
q | Quarter
m | महीना
y | Day of year
w | सप्ताह के दिन
ww | Week of year
d | दिन
h | Hour
n | Minute
s | Second

date1, date2 - The two date values to be compared.

Date literals allow to specify unambiguous date variables that are independent from the current language. Literals are enclosed between hash signs #. Possible formats are:

- #yyyy-mm-dd#

- #mm/dd/yyyy#

firstdayofweek: An optional parameter that specifies the starting day of a week.

firstdayofweek value | स्पष्टीकरण
--- | ---
0 | Use system default value
1 | Sunday (default)
2 | Monday
3 | Tuesday
4 | Wednesday
5 | Thursday
6 | Friday
7 | Saturday

firstweekofyear: An optional parameter that specifies the starting week of a year.

firstweekofyear value | स्पष्टीकरण
--- | ---
0 | Use system default value
1 | Week 1 is the week with January, 1st (default)
2 | Week 1 is the first week containing four or more days of that year
3 | Week 1 is the first week containing only days of the new year

### Example:

    Sub example_datediff
        MsgBox DateDiff("d", #1/1/2005#, #2005-12-31#)
    End Sub

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