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Editorial Team
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Asked: 2026-06-10T01:41:39+00:00

How do I handle dates from a spreadsheet like this. I need to get

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How do I handle dates from a spreadsheet like this. enter image description here

I need to get the last date from column 2 and then find the next date. I have created this code for retrieving the last date.

lastDateRow = sheet.getLastRow()-1;
lastDate = Date(sheet.getRange("B"+(lastDateRow)+":B"+(lastDateRow).getValue());
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  1. Editorial Team

    The value you get from the sheet is already a date object (complete with year, date, hours etc), no further action should be necessary.

    When you say ‘next date’ I guess you meant ‘next day’ ? If so, simply add 24*60*60*1000 to the date in milliseconds and you’ll get the next day 😉

    In code it becomes something like this :

    function xxx(){
var sheet = SpreadsheetApp.getActiveSheet()
var lastDateRow = sheet.getLastRow();
var lastDate = sheet.getRange(lastDateRow,2).getValue();
Logger.log(lastDate)
var nextDay = new Date(lastDate.getTime()+24*60*60*1000);
Logger.log(nextDay)
}

    Logger result on a test :

    Tue Aug 21 15:00:00 PDT 2012
Wed Aug 22 15:00:00 PDT 2012
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