how to automatically add a schedule from Google Sheets into Calendar?-CodePudding

I have tried to implement this code to integrate google calendar with my spreadsheet, but i am fail until now. Follow the code...

function scheduleShifts() {
var spreadsheet = SpreadsheetApp.getActiveSheet();
    var calendarId = spreadsheet.getRange("Dados!CJ3").getValue();
    var eventCal = CalendarApp.getCalendarById(calendarId);
var signups = spreadsheet.getRange("Dados!CI5:CK3500").getValues();
for (x=0; x<signups.length;x  )
{
    var shift = signups[x];
    var startTime = shift[0];
    var endTime = shift[1];
    var volunteer= shift[2];
    eventCal.createEvent(volunteer,startTime,endTime);
}
}

Error message:

21:19:29 Erro Exception: The parameters (String,String,String) don't match the method signature for CalendarApp.Calendar.createEvent. scheduleShifts @ Agenda.gs:12

Based article:

You are currently sending string parms (String,String,String). As shown in the error message

Exception: The parameters (String,String,String) don't match the method signature for CalendarApp.Calendar.createEvent. scheduleShifts

While the method requires that both the start date and end date are actually dates not strings.

var event = CalendarApp.getDefaultCalendar().createEvent('Apollo 11 Landing',
    new Date('July 20, 1969 20:00:00 UTC'),
    new Date('July 21, 1969 21:00:00 UTC'));
Logger.log('Event ID: '   event.getId());