Convert a date to a 'month' serial number for date arithmetic. The result is the number of months since time 0.
(dtm PTDATE) minus (dtm FPDATE)
dtm DateField
| Name | Data Type | Input Type | Description | Optional | Default |
|---|---|---|---|---|---|
| DateField | Date | Field, Constant | No |
Type: Numeric
Number of months since time 0