How can we calculate number of days excluding weekend values in salesforce?

Hi Pranav,

Try this code :

Integer numberDays = Date.daysInMonth(2016, 2);
integer counter=0;
for(integer i=0; i<numberDays; i++){
Date dt = date.newInstance(2016, 1, 1+i);
String dayOfMonth=dt.format('EEEE');

if(dayOfMonth != 'Saturday' && dayOfMonth != 'Sunday'){
counter++;

}
}