How to correctly calculate the number of minutes from a certain moment?

user_7078168 0
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There is a start date for the process in string form:

'2020-03-02 06:49:05'

And the process completion date:

'2020-03-02 07:05:02'

Question:
What is the most correct way from the point of view of the approach - to calculate the difference (in minutes) between the start and finish of the process? (if there are any built-in methods for this in vue.js ornuxt.js, it will be very interesting to learn about them as well.)

nuxt.js vue.js javascript
3 Answers

I think the best way would be to use Javascript Date object,

d1 = '2020-03-02 06:49:05'
d2 = '2020-03-02 07:05:02'

diff_in_millis = Math.abs(new Date(d1) - new Date(d2))
diff_in_minutes = diff/60000
user_40371910

I suggest using momentjs, you can do something like this:

var duration = moment.duration(endTime.diff(startTime));
var minutes = duration.minutes();

More about duration in momentjs can be found here

user_8963580

Create the date from the string using Date.parse(). It return the date in milliseconds, get the difference and convert that to Minutes.

See snippet below.

const startTime= Date.parse('2020-03-02 06:49:05')
const endTime = Date.parse('2020-03-02 07:05:02')

// Difference in Minutes
const durationInMin= (endTime-startTime)/60000;

console.log({ startTime, endTime, durationInMin })

alert(`Process took: ${durationInMin} minutes`)

Note: For human readable dates, I have found date-fns to be the most helpful. Given its lightweight compared to momentjs. And you could complete the same with the following.

import { differenceInMinutes } from 'date-fns';

const startDate = '2020-03-02 06:49:05';
const endDate = '2020-03-02 07:05:02';
const durationInMin = differenceInMinutes( new Date(endDate), new Date(startDate));

console.log(`Duration:  ${durationInMin} minutes`);

At the cost of another dependence to the project of course, but if you are handling lots of human readable dates, it's worth it.

user_37586020
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