moment.js error, sometimes ignores the day

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I have a problem with moment.js and it’s that I have two dates (initial and final) when I initialize the dates, the initial is fine but the final date is not, moment.js ignores the day part of the date ,I set “2020-10-05T09:00” but in the console I get “2020-10T17:15Z”, as you can see it doesn’t have the day part.

Here is my code

const ini = moment("2020-10-01T09:00");
const fin = moment("2020-10-05T09:00");
var diff = fin.diff(ini, 'seconds');

The console prints:

{_isAMomentObject: true, _i: “2020-10T09:00Z”, _isUTC: false, _pf: {…}, _locale: x, …}


Pass the format of your date as the second parameter to create a momentjs object based on your date.

Also, after calculating the fin.diff(ini, 'seconds'), you’ll need to log diff to get the number of seconds;

const ini = moment("2020-10-01T09:00", 'YYYY-MM-DDThh:mm');
const fin = moment("2020-10-05T09:00", 'YYYY-MM-DDThh:mm');
var diff = fin.diff(ini, 'seconds');

// output: 345600
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Source: stackoverflow