Extracts the day number associated with a specified date value.
$day(date)
| date | a data, or an expression that evaluates to a date, in the form YYYYMMDD |
Character string.
This function extracts day information from standard date values. Date is often the system variable $Date.
$day(19981225)
Evaluates to "25".
$day($date+7)
Evaluates to "1" when $Date is 19991225.