I recently came across a blog in Indonesian – which had useful pointers related to OpenOffice alternatives to the Excel DATEDIF() function. Here is the link: http://maseko.com/

The DATEDIF() function is a strange beast in Excel – so much so that it isn’t even implemented in OpenOffice Calc.

The syntax for DATEDIF is as follows:

=DATEDIF(Date1,Date2,Interval)

Where

Date1 is the first date, in standard Excel serial-date format.
Date2 is the second date, in standard Excel serial-date format.
Interval indicates the unit of time that =DATEDIF is to return is result.

There are sixdifferent interval codes in Excel DATEDIF() and we will cover them all with alternatives in OpenOffice Calc.

For example, to calculate someones age (in years) in Excel, you would use =DATEDIF(A1,NOW(),”Y”)

In OpenOffice CALC, we can use =YEARS(A1;NOW();0)

For calculating number of months in Excel, we use =DATEDIF( A1,NOW(),”M”)

In OpenOffice CALC, we use = MONTHS(A1;NOW();0)

For calculating number of days using DATEDIF, we use  =DATEDIF( A1,NOW(),”Y”)

In Openoffice CALC, we can use.. =INT(DAYS(now();A1))