A Function, which returns a date to which a specified time interval has been added.
Syntax
DateAdd(interval,number,date)
Parameter Description
- Interval − A required parameter. It can take the following values.
- d – day of the year
- m – month of the year
- y – year of the year
- yyyy – year
- w – weekday
- ww – week
- q – quarter
- h – hour
- m – minute
- s – second
- Number − A required parameter. It can take both positive and negative parameters.
- Date − A required parameter. A variant or literal representing the date to which an interval is added.
Example
Private Sub Constant_demo_Click() ' Positive Interal date1 = 27-Jun-1894 msgbox("Line 1 : " &DateAdd("yyyy",1,date1)) msgbox("Line 2 : " &DateAdd("q",1,date1)) msgbox("Line 3 : " &DateAdd("m",1,date1)) msgbox("Line 4 : " &DateAdd("y",1,date1)) msgbox("Line 5 : " &DateAdd("d",1,date1)) msgbox("Line 6 : " &DateAdd("w",1,date1)) msgbox("Line 7 : " &DateAdd("ww",1,date1)) msgbox("Line 8 : " &DateAdd("h",1,"01-Jan-2013 12:00:00")) msgbox("Line 9 : " &DateAdd("n",1,"01-Jan-2013 12:00:00")) msgbox("Line 10 : "&DateAdd("s",1,"01-Jan-2013 12:00:00")) ' Negative Interval msgbox("Line 11 : " &DateAdd("yyyy",-1,date1)) msgbox("Line 12 : " &DateAdd("q",-1,date1)) msgbox("Line 13 : " &DateAdd("m",-1,date1)) msgbox("Line 14 : " &DateAdd("y",-1,date1)) msgbox("Line 15 : " &DateAdd("d",-1,date1)) msgbox("Line 16 : " &DateAdd("w",-1,date1)) msgbox("Line 17 : " &DateAdd("ww",-1,date1)) msgbox("Line 18 : " &DateAdd("h",-1,"01-Jan-2013 12:00:00")) msgbox("Line 19 : " &DateAdd("n",-1,"01-Jan-2013 12:00:00")) msgbox("Line 20 : " &DateAdd("s",-1,"01-Jan-2013 12:00:00")) End Sub
When you execute the above function, it produces the following output.
Line 1 : 27/06/1895 Line 2 : 27/09/1894 Line 3 : 27/07/1894 Line 4 : 28/06/1894 Line 5 : 28/06/1894 Line 6 : 28/06/1894 Line 7 : 4/07/1894 Line 8 : 1/01/2013 1:00:00 PM Line 9 : 1/01/2013 12:01:00 PM Line 10 : 1/01/2013 12:00:01 PM Line 11 : 27/06/1893 Line 12 : 27/03/1894 Line 13 : 27/05/1894 Line 14 : 26/06/1894 Line 15 : 26/06/1894 Line 16 : 26/06/1894 Line 17 : 20/06/1894 Line 18 : 1/01/2013 11:00:00 AM Line 19 : 1/01/2013 11:59:00 AM Line 20 : 1/01/2013 11:59:59 AM
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