I was refactoring some code and found this:

 

DateTime CurrentDateTime = System.now();
Datetime ESTDate = Datetime.newInstance(CurrentDateTime.year(),CurrentDateTime.month(),CurrentDateTime.day(),CurrentDateTime.hour(),CurrentDateTime.minute(),CurrentDateTime.second());
String myDateFormat = ESTDate.format('yyyy-MM-dd hh:mm:ss');
String myDate = myDateFormat.replace(' ', 'T');
object1.birthDate = myDate;

I was refactoring some code and found this:

DateTime CurrentDateTime = System.now(); Datetime ESTDate = Datetime.newInstance(CurrentDateTime.year(),CurrentDateTime.month(),CurrentDateTime.day(),CurrentDateTime.hour(),CurrentDateTime.minute(),CurrentDateTime.second()); String myDateFormat = ESTDate.format('yyyy-MM-dd hh:mm:ss'); String myDate = myDateFormat.replace(' ', 'T'); object1.birthDate = myDate; 

And I changed it to

object1.birthDate = datetime.now().format('yyyy-MM-dd\'T\'hh:mm:ss'); 

CurrentDateTime isn't used anywhere just in those four lines. How a programmer can even do that? Or WHY?