moment.js - 两个日期之间的差异已关闭

Question

I'm trying to find the difference between today and a date in the future (number of days) using moment.js.

But the response is always off by 1-2 days.

For instance, trying to find the # of days between today (15 June) and 11th July gives me 25 days whereas it should be 27 days.

Here's what I am using

moment(expiryDate).diff(moment(), 'days');

expiryDate is a string of the format YYYY-MM-DD

I am assuming the difference is because the dates themselves are not included? But nothing in the moment.js document suggests this. Neither did I find anything by which I can tell the library to calculate the difference inclusive of the dates.

Answer 1

This should do the trick

 console.log( moment("2020-07-11", 'YYYY-MM-DD').diff(moment("2020-06-15", 'YYYY-MM-DD'),"days") ) // outputs 26 (which is correct)

 <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.26.0/moment.min.js"></script>

Answer 2

I would normalise on 15:00

 const expiryDate = "2020-06-21"; console.log(moment(expiryDate + " 15:00"),moment({ hour:15 })) console.log( moment(`${expiryDate} 15:00`).diff(moment({ hour:15 }), 'days') )

 <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.26.0/moment.min.js"></script>