Google-sheets – Can’t get number of month for a specific month in the Portuguese version of Google Sheets

This is how to do that with Google Apps Script.

Code

function specificDays(dayName, monthName, year) {
  // set names
  var monthNames = ["January", "February", "March", 
    "April", "May", "June",
    "July", "August", "September", 
    "October", "November", "December"
  ];
  var dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", 
    "Thursday", "Friday", "Saterday"
  ];

  // change string to index of array
  var day = dayNames.indexOf(dayName);
  var month = monthNames.indexOf(monthName)+1;

  // determine the number of days in month
  var daysinMonth = new Date(year, month, 0).getDate();

  // set counter
  var sumDays=0;

  // iterate over the days and compare to day
  for(var i=1; i<=daysinMonth; i++) {
    var checkDay = new Date(year, month-1, parseInt(i)).getDay();    
    if(day == checkDay) {
      sumDays ++;
    }
  }

  // show amount of day names in month
  return sumDays;
}

Screenshot

Remarks

Add the script via Tools>Script editor in the menu. Save the script and you're on the go !!

Example

I've created an example file for you: Amount of Day Names in Month

Depending on the details of your use case, one of the following may be preferable:

1. Add a column with =ARRAYFORMULA(VALUE( B1:B100 )), assuming B1:B100 is the first output column. Then sort by this added column. This may be the easiest way to achieve the sort that you want.

2. Apply Value only to the first output. To my understanding, this requires splitting the regexreplace, so that first the replacement is made, then Value is applied, and only then the embedded array {...} is formed:

=ARRAYFORMULA({VALUE(REGEXREPLACE(A1:A100,...,"$1")), REGEXREPLACE(A1:A100,...,"$2")} )

If you choose this path, you might as well have two different formulas in two columns, one =ARRAYFORMULA(VALUE(REGEXREPLACE(A1:A100,...,"$1"))) and the other =ARRAYFORMULA(REGEXREPLACE(A1:A100,...,"$2")). I think this version is the most readable and flexible one.

3. Apply Value whenever it doesn't throw an error (regardless of columns). This could be done with IfError:

=ARRAYFORMULA(IFERROR(VALUE(REGEXREPLACE(A1:A100,...,{"$1", "$2"})),REGEXREPLACE(A1:A100,...,{"$1", "$2"})))