Returns the number of years between two dates; the returned value may be fractional. The calculations differ between German mode and all other modes, and are described in separate sections below.
Syntax:
enddate #YEARDIF startdate
All modes other than German mode
Examples:
3/1/2018 #YEARDIF 3/1/1956 equals 62
10/1/1993 #YEARDIF 4/14/1978 equals 15.46448087
This operator is useful for service and age calculations. If the field DOH contains the value 2/4/1983 and the field DOB contains the value 7/16/1945, then DOH #YEARDIF DOB returns 37.55464481.
Details of calculation:
Each date is first converted to a decimal year using the equation:
* February is assumed to contain 29 days.
The decimal years are then subtracted.
Example:
German Mode
Examples:
3/31/2018 #YEARDIF 4/1/1956 equals 62
10/1/1993 #YEARDIF 4/14/1978 equals 15.4659479808
This operator is useful for service and age calculations. If the field DOH contains the value 2/4/1983 and the field DOB contains the value 7/16/1945, then DOH #YEARDIF DOB returns 37.5547570157.
Details of calculation:
|
10/1/1993 #YEARDIF 4/14/1978 |
||
| 4/14/1978 | 4/13/1993 | 15 years |
| 4/14/1993 | 9/13/1993 | 5 months |
| 9/14/1993 | 9/30/1993 | 17 days |
| 10/1/1993 | 10/1/1993 | 1 day |
Related Operators:
To compute the number of days between two dates, use - (minus) instead, as in enddate - startdate.