Error while using subtractdays() function

Question

I am facing the issue while trying to get the below mentioned logic through subtractdays() function. 
 
 logic: we need the value i.e. current date - 74 days 
 
 used expression: subtractdays(today(), 74) 
 
 error found:

aryan · Answer

subtractdays() expects dateTime as its first input. But here, today() is of type date.

Prasanta Paul · Answer

The function "today()" returns only date not time. For the subtractDay() function, the first parameter you should pass date and time. I am attaching the snippet. Maybe it will be helpful.