Does time dependent actions consider hours and minutes for executing action?
Example- If my process builder or workflow is set to run as- 

4 Days After X , 
where X is any date field. let's say X = 15/12/2020 7:47 AM ,
when will my action be scheudled to run = 19/12/2020 7:47 AM OR
19/12/2020 0:00 AM