Convert date object from Google sheets to Firebase timestamp

Question

I\'ve got a date object in Google Sheet which I want to import to firestore as a timestamp object, but it doesn\'t work when I do it directly. I am using Google Apps Script.

Answer 1

Suppose if your date object is like 3/2/2020 9:06:07 and from that, you need to extract only the date 2020-03-02 and for that date, if you want to get the timestamp 1583087400000 you can try the below solution.

       var dateSt = sourceData[i][0].toString();
       var stDate = new Date(dateSt);
       var stringfied = JSON.stringify(stDate);
       var updatedDt = stringfied.slice(1,11);

       //now u will have the date as 2020-03-02

       var myDate= updatedDt;
       myDate=myDate.split("-");
       var formattedDate=myDate[0]+"/"+myDate[1]+"/"+myDate[2];

       //Now the date is converted to 2020/03/02 (it should be in YYYY/MM/DD)

       var timestamp = new Date(formattedDate).getTime();

       //Now will have the timestamp for that particular date as 1583087400000
       data.date = timestamp;

Suppose if u don't have a date in your google sheet and you want to create it from the app script means you can try this second solution

       var dateSt = new Date().toISOString().slice(0,10);
       //dateSt will have the date in 2020-06-04
       var myDate = dateSt;
       myDate = myDate.split("-");
       var formattedDate=myDate[0]+"/"+myDate[1]+"/"+myDate[2];
       //formatted date will be 2020/06/04
       var timestamp = new Date(formattedDate).getTime();
       //timeStamp will be 1591209000000
       data.date = timestamp;