Auto update field exclude header row

Question

In Google Sheets I have a column that needs to be updated with the current date & time every time another cell in the same row is updated, but skip the top row which is the header. I found this script from a YouTube video that works great except it updates the entire column. I either need it to exclude the top row or start on row 2 or specify which row to start on if I decide to add more header rows at the top.

I am not a programmer at all, so any help is greatly appreciated.

function onEdit() {
   var s = SpreadsheetApp.getActiveSheet();
   var r = s.getActiveCell();
   if( r.getColumn() != 2 ) 
   { 
      var row = r.getRow();
      var time = new Date();
      time = Utilities.formatDate(time, "GMT+05:30", "dd/MM/yyyy, hh:mm:ss");
      SpreadsheetApp.getActiveSheet().getRange('I' + row.toString()).setValue(time);
   };
}

Answer 1

function onEdit() {
   var s = SpreadsheetApp.getActiveSheet();
   var r = s.getActiveCell();
   var row = r.getRow();
   if( r.getColumn() != 2 && row > 2) 
   {
      var time = new Date();
      time = Utilities.formatDate(time, "GMT+05:30", "dd/MM/yyyy, hh:mm:ss");
      SpreadsheetApp.getActiveSheet().getRange(9, row).setValue(time);
   };
}

Google apps script is built using javascript. The && is a logical and. This means that the block under the if will only execute if both of the criteria are true. To prevent the code from running on the top rows, the only modification needed was this extra check.