Funkce VBScript DateDiff
❮ Kompletní VBScript ReferenceFunkce DateDiff vrací počet intervalů mezi dvěma daty.
Syntax
DateDiff(interval,date1,date2[,firstdayofweek[,firstweekofyear]])
Parameter | Description |
---|---|
interval | Required. The interval you want to use to calculate the
differences between date1 and date2 Can take the following values:
|
date1,date2 | Required. Date expressions. Two dates you want to use in the calculation |
firstdayofweek | Optional. Specifies the day of the week. Can take the following values:
|
firstweekofyear | Optional. Specifies the first week of the year. Can take the following values:
|
Příklady
Příklad 1
Rozdíl mezi 31. lednem 2009 a 31. lednem 2010:
<%
fromDate="31-Jan-09 00:00:00"
toDate="31-Jan-10 23:59:00"
response.write(DateDiff("yyyy",fromDate,toDate) & "<br />")
response.write(DateDiff("q",fromDate,toDate) & "<br />")
response.write(DateDiff("m",fromDate,toDate) & "<br />")
response.write(DateDiff("y",fromDate,toDate) & "<br />")
response.write(DateDiff("d",fromDate,toDate) & "<br />")
response.write(DateDiff("w",fromDate,toDate) & "<br />")
response.write(DateDiff("ww",fromDate,toDate) & "<br />")
response.write(DateDiff("h",fromDate,toDate) & "<br />")
response.write(DateDiff("n",fromDate,toDate) & "<br />")
response.write(DateDiff("s",fromDate,toDate) & "<br />")
%>
Výstupem výše uvedeného kódu bude:
1
4
12
365
365
52
53
8783
527039
31622340
Příklad 2
Kolik týdnů (začátek v pondělí),
mezi 31. prosincem 2009 a 31. prosincem 2012:
<%
fromDate=CDate("2009/12/31")
toDate=CDate("2012/12/31")
response.write(DateDiff("w",fromDate,toDate,vbMonday))
%>
Výstupem výše uvedeného kódu bude:
156
❮ Kompletní VBScript Reference